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Finding the Fourth Proportional to 539,246.70, 744,399.09 and 348,353.10

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Solution

The fourth proportional to 539,246.70, 744,399.09 and 348,353.10 is: 480,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,246.70 : 744,399.09 = 348,353.10 : x
  2. Step 2: Convert to fraction form
    539,246.70/744,399.09 = 348,353.10/x
  3. Step 3: Cross multiply
    539,246.70x = 744,399.09 × 348,353.10
  4. Step 4: Simplify right side
    539,246.70x = 259,313,730,638.68
  5. Step 5: Solve for x
    x = 259,313,730,638.68/539,246.70
  6. Step 6: Final answer
    x = 480,881.44

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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.