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Finding the Fourth Proportional to 614,516.12, 921,774.18 and 193,824.80

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Solution

The fourth proportional to 614,516.12, 921,774.18 and 193,824.80 is: 290,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,516.12 : 921,774.18 = 193,824.80 : x
  2. Step 2: Convert to fraction form
    614,516.12/921,774.18 = 193,824.80/x
  3. Step 3: Cross multiply
    614,516.12x = 921,774.18 × 193,824.80
  4. Step 4: Simplify right side
    614,516.12x = 178,662,696,083.66
  5. Step 5: Solve for x
    x = 178,662,696,083.66/614,516.12
  6. Step 6: Final answer
    x = 290,737.20

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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.