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Finding the Fourth Proportional to 579,548.70, 869,323.05 and 366,972.30

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Solution

The fourth proportional to 579,548.70, 869,323.05 and 366,972.30 is: 550,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,548.70 : 869,323.05 = 366,972.30 : x
  2. Step 2: Convert to fraction form
    579,548.70/869,323.05 = 366,972.30/x
  3. Step 3: Cross multiply
    579,548.70x = 869,323.05 × 366,972.30
  4. Step 4: Simplify right side
    579,548.70x = 319,017,479,101.52
  5. Step 5: Solve for x
    x = 319,017,479,101.52/579,548.70
  6. Step 6: Final answer
    x = 550,458.45

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Half scale
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Double scale
Find fourth proportional to 579,549.70, 869,324.55 and 366,973.30
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.