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Finding the Fourth Proportional to 653,227.28, 979,459.55 and 253,400.84

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Solution

The fourth proportional to 653,227.28, 979,459.55 and 253,400.84 is: 379,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,227.28 : 979,459.55 = 253,400.84 : x
  2. Step 2: Convert to fraction form
    653,227.28/979,459.55 = 253,400.84/x
  3. Step 3: Cross multiply
    653,227.28x = 979,459.55 × 253,400.84
  4. Step 4: Simplify right side
    653,227.28x = 248,195,871,449.02
  5. Step 5: Solve for x
    x = 248,195,871,449.02/653,227.28
  6. Step 6: Final answer
    x = 379,953.32

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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.