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Finding the Fourth Proportional to 431,663.18, 595,698.71 and 240,689.48

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Solution

The fourth proportional to 431,663.18, 595,698.71 and 240,689.48 is: 332,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,663.18 : 595,698.71 = 240,689.48 : x
  2. Step 2: Convert to fraction form
    431,663.18/595,698.71 = 240,689.48/x
  3. Step 3: Cross multiply
    431,663.18x = 595,698.71 × 240,689.48
  4. Step 4: Simplify right side
    431,663.18x = 143,378,408,564.63
  5. Step 5: Solve for x
    x = 143,378,408,564.63/431,663.18
  6. Step 6: Final answer
    x = 332,153.44

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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.