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Finding the Fourth Proportional to 448,697.07, 619,158.92 and 247,480.11

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Solution

The fourth proportional to 448,697.07, 619,158.92 and 247,480.11 is: 341,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,697.07 : 619,158.92 = 247,480.11 : x
  2. Step 2: Convert to fraction form
    448,697.07/619,158.92 = 247,480.11/x
  3. Step 3: Cross multiply
    448,697.07x = 619,158.92 × 247,480.11
  4. Step 4: Simplify right side
    448,697.07x = 153,229,515,151.99
  5. Step 5: Solve for x
    x = 153,229,515,151.99/448,697.07
  6. Step 6: Final answer
    x = 341,498.81

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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.