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Finding the Fourth Proportional to 539,483.78, 744,434.60 and 297,750.83

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Solution

The fourth proportional to 539,483.78, 744,434.60 and 297,750.83 is: 410,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,483.78 : 744,434.60 = 297,750.83 : x
  2. Step 2: Convert to fraction form
    539,483.78/744,434.60 = 297,750.83/x
  3. Step 3: Cross multiply
    539,483.78x = 744,434.60 × 297,750.83
  4. Step 4: Simplify right side
    539,483.78x = 221,656,014,819.79
  5. Step 5: Solve for x
    x = 221,656,014,819.79/539,483.78
  6. Step 6: Final answer
    x = 410,866.88

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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.