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Finding the Fourth Proportional to 534,702.76, 737,840.74 and 308,304.52

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Solution

The fourth proportional to 534,702.76, 737,840.74 and 308,304.52 is: 425,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,702.76 : 737,840.74 = 308,304.52 : x
  2. Step 2: Convert to fraction form
    534,702.76/737,840.74 = 308,304.52/x
  3. Step 3: Cross multiply
    534,702.76x = 737,840.74 × 308,304.52
  4. Step 4: Simplify right side
    534,702.76x = 227,479,635,182.15
  5. Step 5: Solve for x
    x = 227,479,635,182.15/534,702.76
  6. Step 6: Final answer
    x = 425,431.94

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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.