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Finding the Fourth Proportional to 363,442.60, 545,747.10 and 245,636.20

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Solution

The fourth proportional to 363,442.60, 545,747.10 and 245,636.20 is: 368,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,442.60 : 545,747.10 = 245,636.20 : x
  2. Step 2: Convert to fraction form
    363,442.60/545,747.10 = 245,636.20/x
  3. Step 3: Cross multiply
    363,442.60x = 545,747.10 × 245,636.20
  4. Step 4: Simplify right side
    363,442.60x = 134,055,243,805.02
  5. Step 5: Solve for x
    x = 134,055,243,805.02/363,442.60
  6. Step 6: Final answer
    x = 368,848.46

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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.