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Finding the Fourth Proportional to 624,002.10, 936,003.15 and 413,877.30

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Solution

The fourth proportional to 624,002.10, 936,003.15 and 413,877.30 is: 620,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,002.10 : 936,003.15 = 413,877.30 : x
  2. Step 2: Convert to fraction form
    624,002.10/936,003.15 = 413,877.30/x
  3. Step 3: Cross multiply
    624,002.10x = 936,003.15 × 413,877.30
  4. Step 4: Simplify right side
    624,002.10x = 387,390,456,513.50
  5. Step 5: Solve for x
    x = 387,390,456,513.50/624,002.10
  6. Step 6: Final answer
    x = 620,815.95

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Double scale
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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.