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Finding the Fourth Proportional to 614,433.70, 921,650.55 and 509,371.30

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Solution

The fourth proportional to 614,433.70, 921,650.55 and 509,371.30 is: 764,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,433.70 : 921,650.55 = 509,371.30 : x
  2. Step 2: Convert to fraction form
    614,433.70/921,650.55 = 509,371.30/x
  3. Step 3: Cross multiply
    614,433.70x = 921,650.55 × 509,371.30
  4. Step 4: Simplify right side
    614,433.70x = 469,462,338,799.22
  5. Step 5: Solve for x
    x = 469,462,338,799.22/614,433.70
  6. Step 6: Final answer
    x = 764,056.95

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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.