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Finding the Fourth Proportional to 605,842.60, 908,807.10 and 185,117.80

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Solution

The fourth proportional to 605,842.60, 908,807.10 and 185,117.80 is: 277,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,842.60 : 908,807.10 = 185,117.80 : x
  2. Step 2: Convert to fraction form
    605,842.60/908,807.10 = 185,117.80/x
  3. Step 3: Cross multiply
    605,842.60x = 908,807.10 × 185,117.80
  4. Step 4: Simplify right side
    605,842.60x = 168,236,370,976.38
  5. Step 5: Solve for x
    x = 168,236,370,976.38/605,842.60
  6. Step 6: Final answer
    x = 277,689.90

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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.