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Finding the Fourth Proportional to 281,781, 388,897.56 and 174,385.62

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Solution

The fourth proportional to 281,781, 388,897.56 and 174,385.62 is: 240,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,781 : 388,897.56 = 174,385.62 : x
  2. Step 2: Convert to fraction form
    281,781/388,897.56 = 174,385.62/x
  3. Step 3: Cross multiply
    281,781x = 388,897.56 × 174,385.62
  4. Step 4: Simplify right side
    281,781x = 67,818,142,117.09
  5. Step 5: Solve for x
    x = 67,818,142,117.09/281,781
  6. Step 6: Final answer
    x = 240,676.77

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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.