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Finding the Fourth Proportional to 605,870.20, 908,805.30 and 179,421.40

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Solution

The fourth proportional to 605,870.20, 908,805.30 and 179,421.40 is: 269,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,870.20 : 908,805.30 = 179,421.40 : x
  2. Step 2: Convert to fraction form
    605,870.20/908,805.30 = 179,421.40/x
  3. Step 3: Cross multiply
    605,870.20x = 908,805.30 × 179,421.40
  4. Step 4: Simplify right side
    605,870.20x = 163,059,119,253.42
  5. Step 5: Solve for x
    x = 163,059,119,253.42/605,870.20
  6. Step 6: Final answer
    x = 269,132.10

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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.