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Finding the Fourth Proportional to 624,006.10, 936,009.15 and 413,881.30

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Solution

The fourth proportional to 624,006.10, 936,009.15 and 413,881.30 is: 620,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,006.10 : 936,009.15 = 413,881.30 : x
  2. Step 2: Convert to fraction form
    624,006.10/936,009.15 = 413,881.30/x
  3. Step 3: Cross multiply
    624,006.10x = 936,009.15 × 413,881.30
  4. Step 4: Simplify right side
    624,006.10x = 387,396,683,813.90
  5. Step 5: Solve for x
    x = 387,396,683,813.90/624,006.10
  6. Step 6: Final answer
    x = 620,821.95

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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.