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Finding the Fourth Proportional to 605,426.10, 908,139.15 and 162,194.10

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Solution

The fourth proportional to 605,426.10, 908,139.15 and 162,194.10 is: 243,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,426.10 : 908,139.15 = 162,194.10 : x
  2. Step 2: Convert to fraction form
    605,426.10/908,139.15 = 162,194.10/x
  3. Step 3: Cross multiply
    605,426.10x = 908,139.15 × 162,194.10
  4. Step 4: Simplify right side
    605,426.10x = 147,294,812,109.02
  5. Step 5: Solve for x
    x = 147,294,812,109.02/605,426.10
  6. Step 6: Final answer
    x = 243,291.15

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Double scale
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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.