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Finding the Fourth Proportional to 708,260.38, 977,370.89 and 385,963.61

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Solution

The fourth proportional to 708,260.38, 977,370.89 and 385,963.61 is: 532,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,260.38 : 977,370.89 = 385,963.61 : x
  2. Step 2: Convert to fraction form
    708,260.38/977,370.89 = 385,963.61/x
  3. Step 3: Cross multiply
    708,260.38x = 977,370.89 × 385,963.61
  4. Step 4: Simplify right side
    708,260.38x = 377,229,597,013.31
  5. Step 5: Solve for x
    x = 377,229,597,013.31/708,260.38
  6. Step 6: Final answer
    x = 532,614.29

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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.