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Finding the Fourth Proportional to 605,891.20, 908,836.80 and 185,166.40

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Solution

The fourth proportional to 605,891.20, 908,836.80 and 185,166.40 is: 277,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,891.20 : 908,836.80 = 185,166.40 : x
  2. Step 2: Convert to fraction form
    605,891.20/908,836.80 = 185,166.40/x
  3. Step 3: Cross multiply
    605,891.20x = 908,836.80 × 185,166.40
  4. Step 4: Simplify right side
    605,891.20x = 168,286,038,443.52
  5. Step 5: Solve for x
    x = 168,286,038,443.52/605,891.20
  6. Step 6: Final answer
    x = 277,749.60

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Similar ratio
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1.5x scale

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.