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Finding the Fourth Proportional to 391,505.84, 587,259.12 and 96,017.84

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Solution

The fourth proportional to 391,505.84, 587,259.12 and 96,017.84 is: 144,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,505.84 : 587,259.12 = 96,017.84 : x
  2. Step 2: Convert to fraction form
    391,505.84/587,259.12 = 96,017.84/x
  3. Step 3: Cross multiply
    391,505.84x = 587,259.12 × 96,017.84
  4. Step 4: Simplify right side
    391,505.84x = 56,387,352,222.70
  5. Step 5: Solve for x
    x = 56,387,352,222.70/391,505.84
  6. Step 6: Final answer
    x = 144,026.85

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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.