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Finding the Fourth Proportional to 321,407.52, 482,201.55 and 119,000.58

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Solution

The fourth proportional to 321,407.52, 482,201.55 and 119,000.58 is: 178,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,407.52 : 482,201.55 = 119,000.58 : x
  2. Step 2: Convert to fraction form
    321,407.52/482,201.55 = 119,000.58/x
  3. Step 3: Cross multiply
    321,407.52x = 482,201.55 × 119,000.58
  4. Step 4: Simplify right side
    321,407.52x = 57,382,264,126.90
  5. Step 5: Solve for x
    x = 57,382,264,126.90/321,407.52
  6. Step 6: Final answer
    x = 178,534.29

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1.5x scale

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.