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Finding the Fourth Proportional to 267,708.57, 401,433.67 and 155,417.05

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Solution

The fourth proportional to 267,708.57, 401,433.67 and 155,417.05 is: 233,050.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,708.57 : 401,433.67 = 155,417.05 : x
  2. Step 2: Convert to fraction form
    267,708.57/401,433.67 = 155,417.05/x
  3. Step 3: Cross multiply
    267,708.57x = 401,433.67 × 155,417.05
  4. Step 4: Simplify right side
    267,708.57x = 62,389,637,150.62
  5. Step 5: Solve for x
    x = 62,389,637,150.62/267,708.57
  6. Step 6: Final answer
    x = 233,050.58

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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.