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Finding the Fourth Proportional to 614,507.25, 921,760.88 and 193,815.93

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Solution

The fourth proportional to 614,507.25, 921,760.88 and 193,815.93 is: 290,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,507.25 : 921,760.88 = 193,815.93 : x
  2. Step 2: Convert to fraction form
    614,507.25/921,760.88 = 193,815.93/x
  3. Step 3: Cross multiply
    614,507.25x = 921,760.88 × 193,815.93
  4. Step 4: Simplify right side
    614,507.25x = 178,651,942,194.82
  5. Step 5: Solve for x
    x = 178,651,942,194.82/614,507.25
  6. Step 6: Final answer
    x = 290,723.90

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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.