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Finding the Fourth Proportional to 401,818.80, 602,728.20 and 165,082.80

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Solution

The fourth proportional to 401,818.80, 602,728.20 and 165,082.80 is: 247,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,818.80 : 602,728.20 = 165,082.80 : x
  2. Step 2: Convert to fraction form
    401,818.80/602,728.20 = 165,082.80/x
  3. Step 3: Cross multiply
    401,818.80x = 602,728.20 × 165,082.80
  4. Step 4: Simplify right side
    401,818.80x = 99,500,058,894.96
  5. Step 5: Solve for x
    x = 99,500,058,894.96/401,818.80
  6. Step 6: Final answer
    x = 247,624.20

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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.