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Finding the Fourth Proportional to 313,418.94, 432,506 and 170,175.70

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Solution

The fourth proportional to 313,418.94, 432,506 and 170,175.70 is: 234,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,418.94 : 432,506 = 170,175.70 : x
  2. Step 2: Convert to fraction form
    313,418.94/432,506 = 170,175.70/x
  3. Step 3: Cross multiply
    313,418.94x = 432,506 × 170,175.70
  4. Step 4: Simplify right side
    313,418.94x = 73,602,011,304.20
  5. Step 5: Solve for x
    x = 73,602,011,304.20/313,418.94
  6. Step 6: Final answer
    x = 234,835.88

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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.