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Finding the Fourth Proportional to 539,672.24, 744,748.74 and 297,955.28

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Solution

The fourth proportional to 539,672.24, 744,748.74 and 297,955.28 is: 411,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,672.24 : 744,748.74 = 297,955.28 : x
  2. Step 2: Convert to fraction form
    539,672.24/744,748.74 = 297,955.28/x
  3. Step 3: Cross multiply
    539,672.24x = 744,748.74 × 297,955.28
  4. Step 4: Simplify right side
    539,672.24x = 221,901,819,356.35
  5. Step 5: Solve for x
    x = 221,901,819,356.35/539,672.24
  6. Step 6: Final answer
    x = 411,178.87

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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.