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Finding the Fourth Proportional to 463,590.35, 639,681.60 and 270,029.91

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Solution

The fourth proportional to 463,590.35, 639,681.60 and 270,029.91 is: 372,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,590.35 : 639,681.60 = 270,029.91 : x
  2. Step 2: Convert to fraction form
    463,590.35/639,681.60 = 270,029.91/x
  3. Step 3: Cross multiply
    463,590.35x = 639,681.60 × 270,029.91
  4. Step 4: Simplify right side
    463,590.35x = 172,733,164,876.66
  5. Step 5: Solve for x
    x = 172,733,164,876.66/463,590.35
  6. Step 6: Final answer
    x = 372,598.71

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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.