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Finding the Fourth Proportional to 448,500.41, 618,943.03 and 274,098.86

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Solution

The fourth proportional to 448,500.41, 618,943.03 and 274,098.86 is: 378,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,500.41 : 618,943.03 = 274,098.86 : x
  2. Step 2: Convert to fraction form
    448,500.41/618,943.03 = 274,098.86/x
  3. Step 3: Cross multiply
    448,500.41x = 618,943.03 × 274,098.86
  4. Step 4: Simplify right side
    448,500.41x = 169,651,574,462.74
  5. Step 5: Solve for x
    x = 169,651,574,462.74/448,500.41
  6. Step 6: Final answer
    x = 378,264.03

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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.