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Finding the Fourth Proportional to 281,224.70, 388,271.15 and 250,957.97

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Solution

The fourth proportional to 281,224.70, 388,271.15 and 250,957.97 is: 346,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,224.70 : 388,271.15 = 250,957.97 : x
  2. Step 2: Convert to fraction form
    281,224.70/388,271.15 = 250,957.97/x
  3. Step 3: Cross multiply
    281,224.70x = 388,271.15 × 250,957.97
  4. Step 4: Simplify right side
    281,224.70x = 97,439,739,613.57
  5. Step 5: Solve for x
    x = 97,439,739,613.57/281,224.70
  6. Step 6: Final answer
    x = 346,483.58

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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.