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Finding the Fourth Proportional to 636,701.84, 878,773.20 and 364,951.92

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Solution

The fourth proportional to 636,701.84, 878,773.20 and 364,951.92 is: 503,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,701.84 : 878,773.20 = 364,951.92 : x
  2. Step 2: Convert to fraction form
    636,701.84/878,773.20 = 364,951.92/x
  3. Step 3: Cross multiply
    636,701.84x = 878,773.20 × 364,951.92
  4. Step 4: Simplify right side
    636,701.84x = 320,709,966,584.54
  5. Step 5: Solve for x
    x = 320,709,966,584.54/636,701.84
  6. Step 6: Final answer
    x = 503,705.10

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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.