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Finding the Fourth Proportional to 448,965.92, 619,801.53 and 346,761.95

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Solution

The fourth proportional to 448,965.92, 619,801.53 and 346,761.95 is: 478,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,965.92 : 619,801.53 = 346,761.95 : x
  2. Step 2: Convert to fraction form
    448,965.92/619,801.53 = 346,761.95/x
  3. Step 3: Cross multiply
    448,965.92x = 619,801.53 × 346,761.95
  4. Step 4: Simplify right side
    448,965.92x = 214,923,587,155.78
  5. Step 5: Solve for x
    x = 214,923,587,155.78/448,965.92
  6. Step 6: Final answer
    x = 478,708.02

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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.