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Finding the Fourth Proportional to 417,392.52, 625,816.60 and 274,806.20

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Solution

The fourth proportional to 417,392.52, 625,816.60 and 274,806.20 is: 412,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,392.52 : 625,816.60 = 274,806.20 : x
  2. Step 2: Convert to fraction form
    417,392.52/625,816.60 = 274,806.20/x
  3. Step 3: Cross multiply
    417,392.52x = 625,816.60 × 274,806.20
  4. Step 4: Simplify right side
    417,392.52x = 171,978,281,742.92
  5. Step 5: Solve for x
    x = 171,978,281,742.92/417,392.52
  6. Step 6: Final answer
    x = 412,030.10

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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.