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Finding the Fourth Proportional to 931,671.72, 1,285,752.58 and 523,901.92

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Solution

The fourth proportional to 931,671.72, 1,285,752.58 and 523,901.92 is: 723,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,671.72 : 1,285,752.58 = 523,901.92 : x
  2. Step 2: Convert to fraction form
    931,671.72/1,285,752.58 = 523,901.92/x
  3. Step 3: Cross multiply
    931,671.72x = 1,285,752.58 × 523,901.92
  4. Step 4: Simplify right side
    931,671.72x = 673,608,245,306.95
  5. Step 5: Solve for x
    x = 673,608,245,306.95/931,671.72
  6. Step 6: Final answer
    x = 723,010.30

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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.