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Finding the Fourth Proportional to 534,710.76, 737,851.78 and 308,312.52

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Solution

The fourth proportional to 534,710.76, 737,851.78 and 308,312.52 is: 425,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,710.76 : 737,851.78 = 308,312.52 : x
  2. Step 2: Convert to fraction form
    534,710.76/737,851.78 = 308,312.52/x
  3. Step 3: Cross multiply
    534,710.76x = 737,851.78 × 308,312.52
  4. Step 4: Simplify right side
    534,710.76x = 227,488,941,678.29
  5. Step 5: Solve for x
    x = 227,488,941,678.29/534,710.76
  6. Step 6: Final answer
    x = 425,442.98

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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.