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Finding the Fourth Proportional to 310,346.74, 465,724.23 and 170,203.78

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Solution

The fourth proportional to 310,346.74, 465,724.23 and 170,203.78 is: 255,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,346.74 : 465,724.23 = 170,203.78 : x
  2. Step 2: Convert to fraction form
    310,346.74/465,724.23 = 170,203.78/x
  3. Step 3: Cross multiply
    310,346.74x = 465,724.23 × 170,203.78
  4. Step 4: Simplify right side
    310,346.74x = 79,268,024,383.59
  5. Step 5: Solve for x
    x = 79,268,024,383.59/310,346.74
  6. Step 6: Final answer
    x = 255,417.62

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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.