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Finding the Fourth Proportional to 614,376.40, 847,878.24 and 372,681.76

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Solution

The fourth proportional to 614,376.40, 847,878.24 and 372,681.76 is: 514,324.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,376.40 : 847,878.24 = 372,681.76 : x
  2. Step 2: Convert to fraction form
    614,376.40/847,878.24 = 372,681.76/x
  3. Step 3: Cross multiply
    614,376.40x = 847,878.24 × 372,681.76
  4. Step 4: Simplify right side
    614,376.40x = 315,988,754,748.90
  5. Step 5: Solve for x
    x = 315,988,754,748.90/614,376.40
  6. Step 6: Final answer
    x = 514,324.37

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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.