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Finding the Fourth Proportional to 539,010.40, 806,960.40 and 483,023.20

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Solution

The fourth proportional to 539,010.40, 806,960.40 and 483,023.20 is: 723,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,010.40 : 806,960.40 = 483,023.20 : x
  2. Step 2: Convert to fraction form
    539,010.40/806,960.40 = 483,023.20/x
  3. Step 3: Cross multiply
    539,010.40x = 806,960.40 × 483,023.20
  4. Step 4: Simplify right side
    539,010.40x = 389,780,594,681.28
  5. Step 5: Solve for x
    x = 389,780,594,681.28/539,010.40
  6. Step 6: Final answer
    x = 723,141.14

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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.