Home / 614,517.40-921,776.10-490,101.40

Finding the Fourth Proportional to 614,517.40, 921,776.10 and 490,101.40

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Solution

The fourth proportional to 614,517.40, 921,776.10 and 490,101.40 is: 735,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,517.40 : 921,776.10 = 490,101.40 : x
  2. Step 2: Convert to fraction form
    614,517.40/921,776.10 = 490,101.40/x
  3. Step 3: Cross multiply
    614,517.40x = 921,776.10 × 490,101.40
  4. Step 4: Simplify right side
    614,517.40x = 451,763,757,096.54
  5. Step 5: Solve for x
    x = 451,763,757,096.54/614,517.40
  6. Step 6: Final answer
    x = 735,152.10

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Double scale
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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.