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Finding the Fourth Proportional to 614,126.44, 921,189.66 and 239,887

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Solution

The fourth proportional to 614,126.44, 921,189.66 and 239,887 is: 359,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,126.44 : 921,189.66 = 239,887 : x
  2. Step 2: Convert to fraction form
    614,126.44/921,189.66 = 239,887/x
  3. Step 3: Cross multiply
    614,126.44x = 921,189.66 × 239,887
  4. Step 4: Simplify right side
    614,126.44x = 220,981,423,968.42
  5. Step 5: Solve for x
    x = 220,981,423,968.42/614,126.44
  6. Step 6: Final answer
    x = 359,830.50

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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.