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Finding the Fourth Proportional to 313,544.59, 432,693.80 and 170,304.64

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Solution

The fourth proportional to 313,544.59, 432,693.80 and 170,304.64 is: 235,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,544.59 : 432,693.80 = 170,304.64 : x
  2. Step 2: Convert to fraction form
    313,544.59/432,693.80 = 170,304.64/x
  3. Step 3: Cross multiply
    313,544.59x = 432,693.80 × 170,304.64
  4. Step 4: Simplify right side
    313,544.59x = 73,689,761,839.23
  5. Step 5: Solve for x
    x = 73,689,761,839.23/313,544.59
  6. Step 6: Final answer
    x = 235,021.63

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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.