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Finding the Fourth Proportional to 371,245.70, 556,868.55 and 267,047.30

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Solution

The fourth proportional to 371,245.70, 556,868.55 and 267,047.30 is: 400,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,245.70 : 556,868.55 = 267,047.30 : x
  2. Step 2: Convert to fraction form
    371,245.70/556,868.55 = 267,047.30/x
  3. Step 3: Cross multiply
    371,245.70x = 556,868.55 × 267,047.30
  4. Step 4: Simplify right side
    371,245.70x = 148,710,242,732.42
  5. Step 5: Solve for x
    x = 148,710,242,732.42/371,245.70
  6. Step 6: Final answer
    x = 400,570.95

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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.