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Finding the Fourth Proportional to 664,593.30, 996,889.95 and 591,110.10

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Solution

The fourth proportional to 664,593.30, 996,889.95 and 591,110.10 is: 886,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,593.30 : 996,889.95 = 591,110.10 : x
  2. Step 2: Convert to fraction form
    664,593.30/996,889.95 = 591,110.10/x
  3. Step 3: Cross multiply
    664,593.30x = 996,889.95 × 591,110.10
  4. Step 4: Simplify right side
    664,593.30x = 589,271,718,033.50
  5. Step 5: Solve for x
    x = 589,271,718,033.50/664,593.30
  6. Step 6: Final answer
    x = 886,665.15

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Half scale
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Double scale
Find fourth proportional to 664,594.30, 996,891.45 and 591,111.10
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.