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Finding the Fourth Proportional to 315,504.38, 473,257.35 and 125,980.17

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Solution

The fourth proportional to 315,504.38, 473,257.35 and 125,980.17 is: 188,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,504.38 : 473,257.35 = 125,980.17 : x
  2. Step 2: Convert to fraction form
    315,504.38/473,257.35 = 125,980.17/x
  3. Step 3: Cross multiply
    315,504.38x = 473,257.35 × 125,980.17
  4. Step 4: Simplify right side
    315,504.38x = 59,621,040,934.32
  5. Step 5: Solve for x
    x = 59,621,040,934.32/315,504.38
  6. Step 6: Final answer
    x = 188,970.57

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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.