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Finding the Fourth Proportional to 664,617.80, 996,926.70 and 588,510.20

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Solution

The fourth proportional to 664,617.80, 996,926.70 and 588,510.20 is: 882,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,617.80 : 996,926.70 = 588,510.20 : x
  2. Step 2: Convert to fraction form
    664,617.80/996,926.70 = 588,510.20/x
  3. Step 3: Cross multiply
    664,617.80x = 996,926.70 × 588,510.20
  4. Step 4: Simplify right side
    664,617.80x = 586,701,531,602.34
  5. Step 5: Solve for x
    x = 586,701,531,602.34/664,617.80
  6. Step 6: Final answer
    x = 882,765.30

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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.