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Finding the Fourth Proportional to 417,015.60, 625,040.10 and 191,903.64

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Solution

The fourth proportional to 417,015.60, 625,040.10 and 191,903.64 is: 287,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,015.60 : 625,040.10 = 191,903.64 : x
  2. Step 2: Convert to fraction form
    417,015.60/625,040.10 = 191,903.64/x
  3. Step 3: Cross multiply
    417,015.60x = 625,040.10 × 191,903.64
  4. Step 4: Simplify right side
    417,015.60x = 119,947,470,335.96
  5. Step 5: Solve for x
    x = 119,947,470,335.96/417,015.60
  6. Step 6: Final answer
    x = 287,633.05

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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.