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Finding the Fourth Proportional to 472,909.46, 652,630.81 and 258,061.31

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Solution

The fourth proportional to 472,909.46, 652,630.81 and 258,061.31 is: 356,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,909.46 : 652,630.81 = 258,061.31 : x
  2. Step 2: Convert to fraction form
    472,909.46/652,630.81 = 258,061.31/x
  3. Step 3: Cross multiply
    472,909.46x = 652,630.81 × 258,061.31
  4. Step 4: Simplify right side
    472,909.46x = 168,418,760,484.66
  5. Step 5: Solve for x
    x = 168,418,760,484.66/472,909.46
  6. Step 6: Final answer
    x = 356,133.21

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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.