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Finding the Fourth Proportional to 612,851.52, 919,277.46 and 192,160.20

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Solution

The fourth proportional to 612,851.52, 919,277.46 and 192,160.20 is: 288,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,851.52 : 919,277.46 = 192,160.20 : x
  2. Step 2: Convert to fraction form
    612,851.52/919,277.46 = 192,160.20/x
  3. Step 3: Cross multiply
    612,851.52x = 919,277.46 × 192,160.20
  4. Step 4: Simplify right side
    612,851.52x = 176,648,540,569.09
  5. Step 5: Solve for x
    x = 176,648,540,569.09/612,851.52
  6. Step 6: Final answer
    x = 288,240.36

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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.