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Finding the Fourth Proportional to 541,286.40, 811,929.60 and 245,798.40

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Solution

The fourth proportional to 541,286.40, 811,929.60 and 245,798.40 is: 368,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,286.40 : 811,929.60 = 245,798.40 : x
  2. Step 2: Convert to fraction form
    541,286.40/811,929.60 = 245,798.40/x
  3. Step 3: Cross multiply
    541,286.40x = 811,929.60 × 245,798.40
  4. Step 4: Simplify right side
    541,286.40x = 199,570,996,592.64
  5. Step 5: Solve for x
    x = 199,570,996,592.64/541,286.40
  6. Step 6: Final answer
    x = 368,697.60

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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.