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Finding the Fourth Proportional to 310,219.20, 465,674.40 and 170,251.20

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Solution

The fourth proportional to 310,219.20, 465,674.40 and 170,251.20 is: 255,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,219.20 : 465,674.40 = 170,251.20 : x
  2. Step 2: Convert to fraction form
    310,219.20/465,674.40 = 170,251.20/x
  3. Step 3: Cross multiply
    310,219.20x = 465,674.40 × 170,251.20
  4. Step 4: Simplify right side
    310,219.20x = 79,281,625,409.28
  5. Step 5: Solve for x
    x = 79,281,625,409.28/310,219.20
  6. Step 6: Final answer
    x = 255,566.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.