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Finding the Fourth Proportional to 636,187.92, 956,265.48 and 401,041.68

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Solution

The fourth proportional to 636,187.92, 956,265.48 and 401,041.68 is: 602,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,187.92 : 956,265.48 = 401,041.68 : x
  2. Step 2: Convert to fraction form
    636,187.92/956,265.48 = 401,041.68/x
  3. Step 3: Cross multiply
    636,187.92x = 956,265.48 × 401,041.68
  4. Step 4: Simplify right side
    636,187.92x = 383,502,314,625.21
  5. Step 5: Solve for x
    x = 383,502,314,625.21/636,187.92
  6. Step 6: Final answer
    x = 602,812.95

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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.