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Finding the Fourth Proportional to 491,799.60, 737,699.40 and 484,801.20

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Solution

The fourth proportional to 491,799.60, 737,699.40 and 484,801.20 is: 727,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,799.60 : 737,699.40 = 484,801.20 : x
  2. Step 2: Convert to fraction form
    491,799.60/737,699.40 = 484,801.20/x
  3. Step 3: Cross multiply
    491,799.60x = 737,699.40 × 484,801.20
  4. Step 4: Simplify right side
    491,799.60x = 357,637,554,359.28
  5. Step 5: Solve for x
    x = 357,637,554,359.28/491,799.60
  6. Step 6: Final answer
    x = 727,201.80

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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.