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Finding the Fourth Proportional to 539,580.30, 744,610.50 and 297,870.36

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Solution

The fourth proportional to 539,580.30, 744,610.50 and 297,870.36 is: 411,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,580.30 : 744,610.50 = 297,870.36 : x
  2. Step 2: Convert to fraction form
    539,580.30/744,610.50 = 297,870.36/x
  3. Step 3: Cross multiply
    539,580.30x = 744,610.50 × 297,870.36
  4. Step 4: Simplify right side
    539,580.30x = 221,797,397,694.78
  5. Step 5: Solve for x
    x = 221,797,397,694.78/539,580.30
  6. Step 6: Final answer
    x = 411,055.40

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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.