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Finding the Fourth Proportional to 313,690.98, 432,892.61 and 170,451.46

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Solution

The fourth proportional to 313,690.98, 432,892.61 and 170,451.46 is: 235,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,690.98 : 432,892.61 = 170,451.46 : x
  2. Step 2: Convert to fraction form
    313,690.98/432,892.61 = 170,451.46/x
  3. Step 3: Cross multiply
    313,690.98x = 432,892.61 × 170,451.46
  4. Step 4: Simplify right side
    313,690.98x = 73,787,177,397.71
  5. Step 5: Solve for x
    x = 73,787,177,397.71/313,690.98
  6. Step 6: Final answer
    x = 235,222.50

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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.