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Finding the Fourth Proportional to 534,425.66, 737,519.34 and 304,978.38

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Solution

The fourth proportional to 534,425.66, 737,519.34 and 304,978.38 is: 420,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,425.66 : 737,519.34 = 304,978.38 : x
  2. Step 2: Convert to fraction form
    534,425.66/737,519.34 = 304,978.38/x
  3. Step 3: Cross multiply
    534,425.66x = 737,519.34 × 304,978.38
  4. Step 4: Simplify right side
    534,425.66x = 224,927,453,531.87
  5. Step 5: Solve for x
    x = 224,927,453,531.87/534,425.66
  6. Step 6: Final answer
    x = 420,876.98

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1.5x scale

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.