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Finding the Fourth Proportional to 417,534.75, 576,347.40 and 247,768.88

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Solution

The fourth proportional to 417,534.75, 576,347.40 and 247,768.88 is: 342,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,534.75 : 576,347.40 = 247,768.88 : x
  2. Step 2: Convert to fraction form
    417,534.75/576,347.40 = 247,768.88/x
  3. Step 3: Cross multiply
    417,534.75x = 576,347.40 × 247,768.88
  4. Step 4: Simplify right side
    417,534.75x = 142,800,946,907.18
  5. Step 5: Solve for x
    x = 142,800,946,907.18/417,534.75
  6. Step 6: Final answer
    x = 342,009.73

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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.