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Finding the Fourth Proportional to 313,282.74, 432,318.58 and 170,039.72

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Solution

The fourth proportional to 313,282.74, 432,318.58 and 170,039.72 is: 234,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,282.74 : 432,318.58 = 170,039.72 : x
  2. Step 2: Convert to fraction form
    313,282.74/432,318.58 = 170,039.72/x
  3. Step 3: Cross multiply
    313,282.74x = 432,318.58 × 170,039.72
  4. Step 4: Simplify right side
    313,282.74x = 73,511,330,294.00
  5. Step 5: Solve for x
    x = 73,511,330,294.00/313,282.74
  6. Step 6: Final answer
    x = 234,648.52

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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.