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Finding the Fourth Proportional to 554,245.28, 764,881.18 and 350,221.76

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Solution

The fourth proportional to 554,245.28, 764,881.18 and 350,221.76 is: 483,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,245.28 : 764,881.18 = 350,221.76 : x
  2. Step 2: Convert to fraction form
    554,245.28/764,881.18 = 350,221.76/x
  3. Step 3: Cross multiply
    554,245.28x = 764,881.18 × 350,221.76
  4. Step 4: Simplify right side
    554,245.28x = 267,878,031,218.82
  5. Step 5: Solve for x
    x = 267,878,031,218.82/554,245.28
  6. Step 6: Final answer
    x = 483,320.36

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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.