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Finding the Fourth Proportional to 541,411.40, 812,117.10 and 442,996.40

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Solution

The fourth proportional to 541,411.40, 812,117.10 and 442,996.40 is: 664,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,411.40 : 812,117.10 = 442,996.40 : x
  2. Step 2: Convert to fraction form
    541,411.40/812,117.10 = 442,996.40/x
  3. Step 3: Cross multiply
    541,411.40x = 812,117.10 × 442,996.40
  4. Step 4: Simplify right side
    541,411.40x = 359,764,951,678.44
  5. Step 5: Solve for x
    x = 359,764,951,678.44/541,411.40
  6. Step 6: Final answer
    x = 664,494.60

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Half scale
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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.