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Finding the Fourth Proportional to 614,773.40, 921,175.95 and 404,165.30

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Solution

The fourth proportional to 614,773.40, 921,175.95 and 404,165.30 is: 605,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,773.40 : 921,175.95 = 404,165.30 : x
  2. Step 2: Convert to fraction form
    614,773.40/921,175.95 = 404,165.30/x
  3. Step 3: Cross multiply
    614,773.40x = 921,175.95 × 404,165.30
  4. Step 4: Simplify right side
    614,773.40x = 372,307,354,184.54
  5. Step 5: Solve for x
    x = 372,307,354,184.54/614,773.40
  6. Step 6: Final answer
    x = 605,600.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.