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Finding the Fourth Proportional to 408,066.10, 612,099.15 and 171,675.70

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Solution

The fourth proportional to 408,066.10, 612,099.15 and 171,675.70 is: 257,513.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,066.10 : 612,099.15 = 171,675.70 : x
  2. Step 2: Convert to fraction form
    408,066.10/612,099.15 = 171,675.70/x
  3. Step 3: Cross multiply
    408,066.10x = 612,099.15 × 171,675.70
  4. Step 4: Simplify right side
    408,066.10x = 105,082,550,045.66
  5. Step 5: Solve for x
    x = 105,082,550,045.66/408,066.10
  6. Step 6: Final answer
    x = 257,513.55

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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.