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Finding the Fourth Proportional to 443,496.93, 611,306.76 and 346,531.29

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Solution

The fourth proportional to 443,496.93, 611,306.76 and 346,531.29 is: 477,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,496.93 : 611,306.76 = 346,531.29 : x
  2. Step 2: Convert to fraction form
    443,496.93/611,306.76 = 346,531.29/x
  3. Step 3: Cross multiply
    443,496.93x = 611,306.76 × 346,531.29
  4. Step 4: Simplify right side
    443,496.93x = 211,836,920,128.52
  5. Step 5: Solve for x
    x = 211,836,920,128.52/443,496.93
  6. Step 6: Final answer
    x = 477,651.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.