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Finding the Fourth Proportional to 283,353.88, 391,028.35 and 156,029.17

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Solution

The fourth proportional to 283,353.88, 391,028.35 and 156,029.17 is: 215,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,353.88 : 391,028.35 = 156,029.17 : x
  2. Step 2: Convert to fraction form
    283,353.88/391,028.35 = 156,029.17/x
  3. Step 3: Cross multiply
    283,353.88x = 391,028.35 × 156,029.17
  4. Step 4: Simplify right side
    283,353.88x = 61,011,826,941.83
  5. Step 5: Solve for x
    x = 61,011,826,941.83/283,353.88
  6. Step 6: Final answer
    x = 215,320.25

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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.