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Finding the Fourth Proportional to 397,339.70, 596,009.55 and 97,817.90

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Solution

The fourth proportional to 397,339.70, 596,009.55 and 97,817.90 is: 146,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,339.70 : 596,009.55 = 97,817.90 : x
  2. Step 2: Convert to fraction form
    397,339.70/596,009.55 = 97,817.90/x
  3. Step 3: Cross multiply
    397,339.70x = 596,009.55 × 97,817.90
  4. Step 4: Simplify right side
    397,339.70x = 58,300,402,560.95
  5. Step 5: Solve for x
    x = 58,300,402,560.95/397,339.70
  6. Step 6: Final answer
    x = 146,726.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.