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Finding the Fourth Proportional to 624,166.10, 936,249.15 and 519,103.70

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Solution

The fourth proportional to 624,166.10, 936,249.15 and 519,103.70 is: 778,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,166.10 : 936,249.15 = 519,103.70 : x
  2. Step 2: Convert to fraction form
    624,166.10/936,249.15 = 519,103.70/x
  3. Step 3: Cross multiply
    624,166.10x = 936,249.15 × 519,103.70
  4. Step 4: Simplify right side
    624,166.10x = 486,010,397,886.86
  5. Step 5: Solve for x
    x = 486,010,397,886.86/624,166.10
  6. Step 6: Final answer
    x = 778,655.55

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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.