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Finding the Fourth Proportional to 588,879.88, 812,654.38 and 320,607.88

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Solution

The fourth proportional to 588,879.88, 812,654.38 and 320,607.88 is: 442,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,879.88 : 812,654.38 = 320,607.88 : x
  2. Step 2: Convert to fraction form
    588,879.88/812,654.38 = 320,607.88/x
  3. Step 3: Cross multiply
    588,879.88x = 812,654.38 × 320,607.88
  4. Step 4: Simplify right side
    588,879.88x = 260,543,397,944.51
  5. Step 5: Solve for x
    x = 260,543,397,944.51/588,879.88
  6. Step 6: Final answer
    x = 442,438.95

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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.