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Finding the Fourth Proportional to 391,706.88, 587,560.32 and 96,218.88

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Solution

The fourth proportional to 391,706.88, 587,560.32 and 96,218.88 is: 144,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,706.88 : 587,560.32 = 96,218.88 : x
  2. Step 2: Convert to fraction form
    391,706.88/587,560.32 = 96,218.88/x
  3. Step 3: Cross multiply
    391,706.88x = 587,560.32 × 96,218.88
  4. Step 4: Simplify right side
    391,706.88x = 56,534,395,922.84
  5. Step 5: Solve for x
    x = 56,534,395,922.84/391,706.88
  6. Step 6: Final answer
    x = 144,328.32

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1.5x scale

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.