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Finding the Fourth Proportional to 461,446.80, 692,170.20 and 283,376.40

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Solution

The fourth proportional to 461,446.80, 692,170.20 and 283,376.40 is: 425,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,446.80 : 692,170.20 = 283,376.40 : x
  2. Step 2: Convert to fraction form
    461,446.80/692,170.20 = 283,376.40/x
  3. Step 3: Cross multiply
    461,446.80x = 692,170.20 × 283,376.40
  4. Step 4: Simplify right side
    461,446.80x = 196,144,699,463.28
  5. Step 5: Solve for x
    x = 196,144,699,463.28/461,446.80
  6. Step 6: Final answer
    x = 425,064.60

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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.