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Finding the Fourth Proportional to 484,638.60, 726,666.30 and 248,442.60

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Solution

The fourth proportional to 484,638.60, 726,666.30 and 248,442.60 is: 372,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,638.60 : 726,666.30 = 248,442.60 : x
  2. Step 2: Convert to fraction form
    484,638.60/726,666.30 = 248,442.60/x
  3. Step 3: Cross multiply
    484,638.60x = 726,666.30 × 248,442.60
  4. Step 4: Simplify right side
    484,638.60x = 180,534,864,904.38
  5. Step 5: Solve for x
    x = 180,534,864,904.38/484,638.60
  6. Step 6: Final answer
    x = 372,514.42

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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.