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Finding the Fourth Proportional to 595,252.88, 821,103.72 and 391,340.24

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Solution

The fourth proportional to 595,252.88, 821,103.72 and 391,340.24 is: 539,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,252.88 : 821,103.72 = 391,340.24 : x
  2. Step 2: Convert to fraction form
    595,252.88/821,103.72 = 391,340.24/x
  3. Step 3: Cross multiply
    595,252.88x = 821,103.72 × 391,340.24
  4. Step 4: Simplify right side
    595,252.88x = 321,330,926,849.69
  5. Step 5: Solve for x
    x = 321,330,926,849.69/595,252.88
  6. Step 6: Final answer
    x = 539,822.55

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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.