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Finding the Fourth Proportional to 916,674.48, 1,375,049 and 436,655.52

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Solution

The fourth proportional to 916,674.48, 1,375,049 and 436,655.52 is: 655,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,674.48 : 1,375,049 = 436,655.52 : x
  2. Step 2: Convert to fraction form
    916,674.48/1,375,049 = 436,655.52/x
  3. Step 3: Cross multiply
    916,674.48x = 1,375,049 × 436,655.52
  4. Step 4: Simplify right side
    916,674.48x = 600,422,736,120.48
  5. Step 5: Solve for x
    x = 600,422,736,120.48/916,674.48
  6. Step 6: Final answer
    x = 655,001.04

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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.