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Finding the Fourth Proportional to 416,424.60, 574,665.30 and 225,437.94

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Solution

The fourth proportional to 416,424.60, 574,665.30 and 225,437.94 is: 311,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,424.60 : 574,665.30 = 225,437.94 : x
  2. Step 2: Convert to fraction form
    416,424.60/574,665.30 = 225,437.94/x
  3. Step 3: Cross multiply
    416,424.60x = 574,665.30 × 225,437.94
  4. Step 4: Simplify right side
    416,424.60x = 129,551,361,421.48
  5. Step 5: Solve for x
    x = 129,551,361,421.48/416,424.60
  6. Step 6: Final answer
    x = 311,104.01

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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.