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Finding the Fourth Proportional to 281,585.70, 388,602.27 and 174,211.56

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Solution

The fourth proportional to 281,585.70, 388,602.27 and 174,211.56 is: 240,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,585.70 : 388,602.27 = 174,211.56 : x
  2. Step 2: Convert to fraction form
    281,585.70/388,602.27 = 174,211.56/x
  3. Step 3: Cross multiply
    281,585.70x = 388,602.27 × 174,211.56
  4. Step 4: Simplify right side
    281,585.70x = 67,699,007,676.24
  5. Step 5: Solve for x
    x = 67,699,007,676.24/281,585.70
  6. Step 6: Final answer
    x = 240,420.62

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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.