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Finding the Fourth Proportional to 281,411.76, 388,294.20 and 190,841.52

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Solution

The fourth proportional to 281,411.76, 388,294.20 and 190,841.52 is: 263,324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,411.76 : 388,294.20 = 190,841.52 : x
  2. Step 2: Convert to fraction form
    281,411.76/388,294.20 = 190,841.52/x
  3. Step 3: Cross multiply
    281,411.76x = 388,294.20 × 190,841.52
  4. Step 4: Simplify right side
    281,411.76x = 74,102,655,335.18
  5. Step 5: Solve for x
    x = 74,102,655,335.18/281,411.76
  6. Step 6: Final answer
    x = 263,324.66

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1.5x scale

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.