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Finding the Fourth Proportional to 531,253.74, 733,108.82 and 289,531.13

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Solution

The fourth proportional to 531,253.74, 733,108.82 and 289,531.13 is: 399,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,253.74 : 733,108.82 = 289,531.13 : x
  2. Step 2: Convert to fraction form
    531,253.74/733,108.82 = 289,531.13/x
  3. Step 3: Cross multiply
    531,253.74x = 733,108.82 × 289,531.13
  4. Step 4: Simplify right side
    531,253.74x = 212,257,825,067.57
  5. Step 5: Solve for x
    x = 212,257,825,067.57/531,253.74
  6. Step 6: Final answer
    x = 399,541.33

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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.