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Finding the Fourth Proportional to 636,297.92, 877,999.68 and 374,497.54

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Solution

The fourth proportional to 636,297.92, 877,999.68 and 374,497.54 is: 516,752.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,297.92 : 877,999.68 = 374,497.54 : x
  2. Step 2: Convert to fraction form
    636,297.92/877,999.68 = 374,497.54/x
  3. Step 3: Cross multiply
    636,297.92x = 877,999.68 × 374,497.54
  4. Step 4: Simplify right side
    636,297.92x = 328,808,720,280.79
  5. Step 5: Solve for x
    x = 328,808,720,280.79/636,297.92
  6. Step 6: Final answer
    x = 516,752.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.