Home / 579,121.60-868,682.40-558,126.40

Finding the Fourth Proportional to 579,121.60, 868,682.40 and 558,126.40

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Solution

The fourth proportional to 579,121.60, 868,682.40 and 558,126.40 is: 837,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,121.60 : 868,682.40 = 558,126.40 : x
  2. Step 2: Convert to fraction form
    579,121.60/868,682.40 = 558,126.40/x
  3. Step 3: Cross multiply
    579,121.60x = 868,682.40 × 558,126.40
  4. Step 4: Simplify right side
    579,121.60x = 484,834,580,655.36
  5. Step 5: Solve for x
    x = 484,834,580,655.36/579,121.60
  6. Step 6: Final answer
    x = 837,189.60

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Half scale
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Double scale
Find fourth proportional to 579,122.60, 868,683.90 and 558,127.40
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.