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Finding the Fourth Proportional to 375,343.88, 561,603.27 and 263,242.91

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Solution

The fourth proportional to 375,343.88, 561,603.27 and 263,242.91 is: 393,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,343.88 : 561,603.27 = 263,242.91 : x
  2. Step 2: Convert to fraction form
    375,343.88/561,603.27 = 263,242.91/x
  3. Step 3: Cross multiply
    375,343.88x = 561,603.27 × 263,242.91
  4. Step 4: Simplify right side
    375,343.88x = 147,838,081,451.49
  5. Step 5: Solve for x
    x = 147,838,081,451.49/375,343.88
  6. Step 6: Final answer
    x = 393,873.70

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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.