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Finding the Fourth Proportional to 448,082.40, 671,686.20 and 400,843.20

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Solution

The fourth proportional to 448,082.40, 671,686.20 and 400,843.20 is: 600,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,082.40 : 671,686.20 = 400,843.20 : x
  2. Step 2: Convert to fraction form
    448,082.40/671,686.20 = 400,843.20/x
  3. Step 3: Cross multiply
    448,082.40x = 671,686.20 × 400,843.20
  4. Step 4: Simplify right side
    448,082.40x = 269,240,845,803.84
  5. Step 5: Solve for x
    x = 269,240,845,803.84/448,082.40
  6. Step 6: Final answer
    x = 600,873.51

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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.