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Finding the Fourth Proportional to 675,993.28, 931,876.84 and 514,567.12

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Solution

The fourth proportional to 675,993.28, 931,876.84 and 514,567.12 is: 709,346.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,993.28 : 931,876.84 = 514,567.12 : x
  2. Step 2: Convert to fraction form
    675,993.28/931,876.84 = 514,567.12/x
  3. Step 3: Cross multiply
    675,993.28x = 931,876.84 × 514,567.12
  4. Step 4: Simplify right side
    675,993.28x = 479,513,181,753.50
  5. Step 5: Solve for x
    x = 479,513,181,753.50/675,993.28
  6. Step 6: Final answer
    x = 709,346.08

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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.