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Finding the Fourth Proportional to 652,567.20, 978,073.20 and 273,487.20

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Solution

The fourth proportional to 652,567.20, 978,073.20 and 273,487.20 is: 409,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,567.20 : 978,073.20 = 273,487.20 : x
  2. Step 2: Convert to fraction form
    652,567.20/978,073.20 = 273,487.20/x
  3. Step 3: Cross multiply
    652,567.20x = 978,073.20 × 273,487.20
  4. Step 4: Simplify right side
    652,567.20x = 267,490,500,863.04
  5. Step 5: Solve for x
    x = 267,490,500,863.04/652,567.20
  6. Step 6: Final answer
    x = 409,904.91

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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.