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Finding the Fourth Proportional to 463,339.38, 639,078.66 and 425,222.06

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Solution

The fourth proportional to 463,339.38, 639,078.66 and 425,222.06 is: 586,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,339.38 : 639,078.66 = 425,222.06 : x
  2. Step 2: Convert to fraction form
    463,339.38/639,078.66 = 425,222.06/x
  3. Step 3: Cross multiply
    463,339.38x = 639,078.66 × 425,222.06
  4. Step 4: Simplify right side
    463,339.38x = 271,750,341,111.85
  5. Step 5: Solve for x
    x = 271,750,341,111.85/463,339.38
  6. Step 6: Final answer
    x = 586,503.87

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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.