Home / 644,458,243.70-966,687,365.55-579,960,989.30

Finding the Fourth Proportional to 644,458,243.70, 966,687,365.55 and 579,960,989.30

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Solution

The fourth proportional to 644,458,243.70, 966,687,365.55 and 579,960,989.30 is: 869,941,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,458,243.70 : 966,687,365.55 = 579,960,989.30 : x
  2. Step 2: Convert to fraction form
    644,458,243.70/966,687,365.55 = 579,960,989.30/x
  3. Step 3: Cross multiply
    644,458,243.70x = 966,687,365.55 × 579,960,989.30
  4. Step 4: Simplify right side
    644,458,243.70x = 560,640,960,868,188,672
  5. Step 5: Solve for x
    x = 560,640,960,868,188,672/644,458,243.70
  6. Step 6: Final answer
    x = 869,941,483.95

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Half scale
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Double scale
Find fourth proportional to 644,458,244.70, 966,687,367.05 and 579,960,990.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.