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Finding the Fourth Proportional to 486,098.10, 729,147.15 and 249,464.70

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Solution

The fourth proportional to 486,098.10, 729,147.15 and 249,464.70 is: 374,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,098.10 : 729,147.15 = 249,464.70 : x
  2. Step 2: Convert to fraction form
    486,098.10/729,147.15 = 249,464.70/x
  3. Step 3: Cross multiply
    486,098.10x = 729,147.15 × 249,464.70
  4. Step 4: Simplify right side
    486,098.10x = 181,896,475,030.61
  5. Step 5: Solve for x
    x = 181,896,475,030.61/486,098.10
  6. Step 6: Final answer
    x = 374,197.05

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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.