Home / 664,298.20-996,447.30-658,077.40

Finding the Fourth Proportional to 664,298.20, 996,447.30 and 658,077.40

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Solution

The fourth proportional to 664,298.20, 996,447.30 and 658,077.40 is: 987,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,298.20 : 996,447.30 = 658,077.40 : x
  2. Step 2: Convert to fraction form
    664,298.20/996,447.30 = 658,077.40/x
  3. Step 3: Cross multiply
    664,298.20x = 996,447.30 × 658,077.40
  4. Step 4: Simplify right side
    664,298.20x = 655,739,448,421.02
  5. Step 5: Solve for x
    x = 655,739,448,421.02/664,298.20
  6. Step 6: Final answer
    x = 987,116.10

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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.