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Finding the Fourth Proportional to 363,205.20, 544,807.80 and 316,549.20

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Solution

The fourth proportional to 363,205.20, 544,807.80 and 316,549.20 is: 474,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,205.20 : 544,807.80 = 316,549.20 : x
  2. Step 2: Convert to fraction form
    363,205.20/544,807.80 = 316,549.20/x
  3. Step 3: Cross multiply
    363,205.20x = 544,807.80 × 316,549.20
  4. Step 4: Simplify right side
    363,205.20x = 172,458,473,243.76
  5. Step 5: Solve for x
    x = 172,458,473,243.76/363,205.20
  6. Step 6: Final answer
    x = 474,823.80

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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.