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Finding the Fourth Proportional to 313,287.53, 432,337.14 and 170,047.54

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Solution

The fourth proportional to 313,287.53, 432,337.14 and 170,047.54 is: 234,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,287.53 : 432,337.14 = 170,047.54 : x
  2. Step 2: Convert to fraction form
    313,287.53/432,337.14 = 170,047.54/x
  3. Step 3: Cross multiply
    313,287.53x = 432,337.14 × 170,047.54
  4. Step 4: Simplify right side
    313,287.53x = 73,517,866,026.79
  5. Step 5: Solve for x
    x = 73,517,866,026.79/313,287.53
  6. Step 6: Final answer
    x = 234,665.79

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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.