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Finding the Fourth Proportional to 664,613.30, 996,919.95 and 591,130.10

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Solution

The fourth proportional to 664,613.30, 996,919.95 and 591,130.10 is: 886,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,613.30 : 996,919.95 = 591,130.10 : x
  2. Step 2: Convert to fraction form
    664,613.30/996,919.95 = 591,130.10/x
  3. Step 3: Cross multiply
    664,613.30x = 996,919.95 × 591,130.10
  4. Step 4: Simplify right side
    664,613.30x = 589,309,389,735.50
  5. Step 5: Solve for x
    x = 589,309,389,735.50/664,613.30
  6. Step 6: Final answer
    x = 886,695.15

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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.