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Finding the Fourth Proportional to 677,684.57, 935,211.90 and 371,761.53

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Solution

The fourth proportional to 677,684.57, 935,211.90 and 371,761.53 is: 513,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,684.57 : 935,211.90 = 371,761.53 : x
  2. Step 2: Convert to fraction form
    677,684.57/935,211.90 = 371,761.53/x
  3. Step 3: Cross multiply
    677,684.57x = 935,211.90 × 371,761.53
  4. Step 4: Simplify right side
    677,684.57x = 347,675,806,818.21
  5. Step 5: Solve for x
    x = 347,675,806,818.21/677,684.57
  6. Step 6: Final answer
    x = 513,034.86

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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.