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Finding the Fourth Proportional to 347,616.46, 479,462.86 and 319,028.24

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Solution

The fourth proportional to 347,616.46, 479,462.86 and 319,028.24 is: 440,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,616.46 : 479,462.86 = 319,028.24 : x
  2. Step 2: Convert to fraction form
    347,616.46/479,462.86 = 319,028.24/x
  3. Step 3: Cross multiply
    347,616.46x = 479,462.86 × 319,028.24
  4. Step 4: Simplify right side
    347,616.46x = 152,962,192,371.17
  5. Step 5: Solve for x
    x = 152,962,192,371.17/347,616.46
  6. Step 6: Final answer
    x = 440,031.50

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1.5x scale

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.