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Finding the Fourth Proportional to 267,808.70, 400,935.45 and 260,032.70

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Solution

The fourth proportional to 267,808.70, 400,935.45 and 260,032.70 is: 389,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,808.70 : 400,935.45 = 260,032.70 : x
  2. Step 2: Convert to fraction form
    267,808.70/400,935.45 = 260,032.70/x
  3. Step 3: Cross multiply
    267,808.70x = 400,935.45 × 260,032.70
  4. Step 4: Simplify right side
    267,808.70x = 104,256,327,589.22
  5. Step 5: Solve for x
    x = 104,256,327,589.22/267,808.70
  6. Step 6: Final answer
    x = 389,294.03

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1.5x scale

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.