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Finding the Fourth Proportional to 313,969.92, 433,273.55 and 170,728.71

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Solution

The fourth proportional to 313,969.92, 433,273.55 and 170,728.71 is: 235,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,969.92 : 433,273.55 = 170,728.71 : x
  2. Step 2: Convert to fraction form
    313,969.92/433,273.55 = 170,728.71/x
  3. Step 3: Cross multiply
    313,969.92x = 433,273.55 × 170,728.71
  4. Step 4: Simplify right side
    313,969.92x = 73,972,234,498.16
  5. Step 5: Solve for x
    x = 73,972,234,498.16/313,969.92
  6. Step 6: Final answer
    x = 235,602.93

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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.