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Finding the Fourth Proportional to 313,296.70, 432,351.63 and 170,056.72

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Solution

The fourth proportional to 313,296.70, 432,351.63 and 170,056.72 is: 234,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,296.70 : 432,351.63 = 170,056.72 : x
  2. Step 2: Convert to fraction form
    313,296.70/432,351.63 = 170,056.72/x
  3. Step 3: Cross multiply
    313,296.70x = 432,351.63 × 170,056.72
  4. Step 4: Simplify right side
    313,296.70x = 73,524,300,084.45
  5. Step 5: Solve for x
    x = 73,524,300,084.45/313,296.70
  6. Step 6: Final answer
    x = 234,679.46

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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.