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Finding the Fourth Proportional to 555,069.14, 766,013.99 and 340,167.71

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Solution

The fourth proportional to 555,069.14, 766,013.99 and 340,167.71 is: 469,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,069.14 : 766,013.99 = 340,167.71 : x
  2. Step 2: Convert to fraction form
    555,069.14/766,013.99 = 340,167.71/x
  3. Step 3: Cross multiply
    555,069.14x = 766,013.99 × 340,167.71
  4. Step 4: Simplify right side
    555,069.14x = 260,573,221,826.61
  5. Step 5: Solve for x
    x = 260,573,221,826.61/555,069.14
  6. Step 6: Final answer
    x = 469,442.82

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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.