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Finding the Fourth Proportional to 448,358.68, 671,790.48 and 368,642.53

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Solution

The fourth proportional to 448,358.68, 671,790.48 and 368,642.53 is: 552,349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,358.68 : 671,790.48 = 368,642.53 : x
  2. Step 2: Convert to fraction form
    448,358.68/671,790.48 = 368,642.53/x
  3. Step 3: Cross multiply
    448,358.68x = 671,790.48 × 368,642.53
  4. Step 4: Simplify right side
    448,358.68x = 247,650,542,177.11
  5. Step 5: Solve for x
    x = 247,650,542,177.11/448,358.68
  6. Step 6: Final answer
    x = 552,349.16

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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.