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Finding the Fourth Proportional to 338,515.40, 467,150.28 and 187,612.40

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Solution

The fourth proportional to 338,515.40, 467,150.28 and 187,612.40 is: 258,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,515.40 : 467,150.28 = 187,612.40 : x
  2. Step 2: Convert to fraction form
    338,515.40/467,150.28 = 187,612.40/x
  3. Step 3: Cross multiply
    338,515.40x = 467,150.28 × 187,612.40
  4. Step 4: Simplify right side
    338,515.40x = 87,643,185,191.47
  5. Step 5: Solve for x
    x = 87,643,185,191.47/338,515.40
  6. Step 6: Final answer
    x = 258,904.57

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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.