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Finding the Fourth Proportional to 539,527.64, 744,548.18 and 297,810.28

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Solution

The fourth proportional to 539,527.64, 744,548.18 and 297,810.28 is: 410,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,527.64 : 744,548.18 = 297,810.28 : x
  2. Step 2: Convert to fraction form
    539,527.64/744,548.18 = 297,810.28/x
  3. Step 3: Cross multiply
    539,527.64x = 744,548.18 × 297,810.28
  4. Step 4: Simplify right side
    539,527.64x = 221,734,101,959.29
  5. Step 5: Solve for x
    x = 221,734,101,959.29/539,527.64
  6. Step 6: Final answer
    x = 410,978.21

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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.