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Finding the Fourth Proportional to 624,683.52, 936,079.20 and 413,565.12

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Solution

The fourth proportional to 624,683.52, 936,079.20 and 413,565.12 is: 619,721.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,683.52 : 936,079.20 = 413,565.12 : x
  2. Step 2: Convert to fraction form
    624,683.52/936,079.20 = 413,565.12/x
  3. Step 3: Cross multiply
    624,683.52x = 936,079.20 × 413,565.12
  4. Step 4: Simplify right side
    624,683.52x = 387,129,706,677.50
  5. Step 5: Solve for x
    x = 387,129,706,677.50/624,683.52
  6. Step 6: Final answer
    x = 619,721.34

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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.