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Finding the Fourth Proportional to 555,451.28, 766,724.04 and 364,526.48

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Solution

The fourth proportional to 555,451.28, 766,724.04 and 364,526.48 is: 503,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,451.28 : 766,724.04 = 364,526.48 : x
  2. Step 2: Convert to fraction form
    555,451.28/766,724.04 = 364,526.48/x
  3. Step 3: Cross multiply
    555,451.28x = 766,724.04 × 364,526.48
  4. Step 4: Simplify right side
    555,451.28x = 279,491,215,432.58
  5. Step 5: Solve for x
    x = 279,491,215,432.58/555,451.28
  6. Step 6: Final answer
    x = 503,178.63

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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.