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Finding the Fourth Proportional to 541,412.40, 812,118.60 and 442,997.40

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Solution

The fourth proportional to 541,412.40, 812,118.60 and 442,997.40 is: 664,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,412.40 : 812,118.60 = 442,997.40 : x
  2. Step 2: Convert to fraction form
    541,412.40/812,118.60 = 442,997.40/x
  3. Step 3: Cross multiply
    541,412.40x = 812,118.60 × 442,997.40
  4. Step 4: Simplify right side
    541,412.40x = 359,766,428,291.64
  5. Step 5: Solve for x
    x = 359,766,428,291.64/541,412.40
  6. Step 6: Final answer
    x = 664,496.10

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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.