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Finding the Fourth Proportional to 432,956.70, 650,309.85 and 418,085.10

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Solution

The fourth proportional to 432,956.70, 650,309.85 and 418,085.10 is: 627,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,956.70 : 650,309.85 = 418,085.10 : x
  2. Step 2: Convert to fraction form
    432,956.70/650,309.85 = 418,085.10/x
  3. Step 3: Cross multiply
    432,956.70x = 650,309.85 × 418,085.10
  4. Step 4: Simplify right side
    432,956.70x = 271,884,858,668.24
  5. Step 5: Solve for x
    x = 271,884,858,668.24/432,956.70
  6. Step 6: Final answer
    x = 627,972.40

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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.