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Finding the Fourth Proportional to 267,428.06, 400,237.90 and 260,231.51

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Solution

The fourth proportional to 267,428.06, 400,237.90 and 260,231.51 is: 389,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,428.06 : 400,237.90 = 260,231.51 : x
  2. Step 2: Convert to fraction form
    267,428.06/400,237.90 = 260,231.51/x
  3. Step 3: Cross multiply
    267,428.06x = 400,237.90 × 260,231.51
  4. Step 4: Simplify right side
    267,428.06x = 104,154,513,076.23
  5. Step 5: Solve for x
    x = 104,154,513,076.23/267,428.06
  6. Step 6: Final answer
    x = 389,467.41

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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.