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Finding the Fourth Proportional to 452,767.40, 679,151.10 and 347,791.40

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Solution

The fourth proportional to 452,767.40, 679,151.10 and 347,791.40 is: 521,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,767.40 : 679,151.10 = 347,791.40 : x
  2. Step 2: Convert to fraction form
    452,767.40/679,151.10 = 347,791.40/x
  3. Step 3: Cross multiply
    452,767.40x = 679,151.10 × 347,791.40
  4. Step 4: Simplify right side
    452,767.40x = 236,202,911,880.54
  5. Step 5: Solve for x
    x = 236,202,911,880.54/452,767.40
  6. Step 6: Final answer
    x = 521,687.10

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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.