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Finding the Fourth Proportional to 541,278.80, 811,918.20 and 364,331.60

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Solution

The fourth proportional to 541,278.80, 811,918.20 and 364,331.60 is: 546,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,278.80 : 811,918.20 = 364,331.60 : x
  2. Step 2: Convert to fraction form
    541,278.80/811,918.20 = 364,331.60/x
  3. Step 3: Cross multiply
    541,278.80x = 811,918.20 × 364,331.60
  4. Step 4: Simplify right side
    541,278.80x = 295,807,456,875.12
  5. Step 5: Solve for x
    x = 295,807,456,875.12/541,278.80
  6. Step 6: Final answer
    x = 546,497.40

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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.