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Finding the Fourth Proportional to 546,722.39, 753,806.61 and 449,586.79

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Solution

The fourth proportional to 546,722.39, 753,806.61 and 449,586.79 is: 619,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,722.39 : 753,806.61 = 449,586.79 : x
  2. Step 2: Convert to fraction form
    546,722.39/753,806.61 = 449,586.79/x
  3. Step 3: Cross multiply
    546,722.39x = 753,806.61 × 449,586.79
  4. Step 4: Simplify right side
    546,722.39x = 338,901,492,186.17
  5. Step 5: Solve for x
    x = 338,901,492,186.17/546,722.39
  6. Step 6: Final answer
    x = 619,878.57

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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.