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Finding the Fourth Proportional to 368,519.52, 550,087.80 and 316,264.80

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Solution

The fourth proportional to 368,519.52, 550,087.80 and 316,264.80 is: 472,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,519.52 : 550,087.80 = 316,264.80 : x
  2. Step 2: Convert to fraction form
    368,519.52/550,087.80 = 316,264.80/x
  3. Step 3: Cross multiply
    368,519.52x = 550,087.80 × 316,264.80
  4. Step 4: Simplify right side
    368,519.52x = 173,973,408,049.44
  5. Step 5: Solve for x
    x = 173,973,408,049.44/368,519.52
  6. Step 6: Final answer
    x = 472,087.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.