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Finding the Fourth Proportional to 605,118.60, 907,677.90 and 161,886.60

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Solution

The fourth proportional to 605,118.60, 907,677.90 and 161,886.60 is: 242,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,118.60 : 907,677.90 = 161,886.60 : x
  2. Step 2: Convert to fraction form
    605,118.60/907,677.90 = 161,886.60/x
  3. Step 3: Cross multiply
    605,118.60x = 907,677.90 × 161,886.60
  4. Step 4: Simplify right side
    605,118.60x = 146,940,889,126.14
  5. Step 5: Solve for x
    x = 146,940,889,126.14/605,118.60
  6. Step 6: Final answer
    x = 242,829.90

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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.