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Finding the Fourth Proportional to 632,236.48, 871,782.24 and 471,186.88

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Solution

The fourth proportional to 632,236.48, 871,782.24 and 471,186.88 is: 649,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,236.48 : 871,782.24 = 471,186.88 : x
  2. Step 2: Convert to fraction form
    632,236.48/871,782.24 = 471,186.88/x
  3. Step 3: Cross multiply
    632,236.48x = 871,782.24 × 471,186.88
  4. Step 4: Simplify right side
    632,236.48x = 410,772,353,705.01
  5. Step 5: Solve for x
    x = 410,772,353,705.01/632,236.48
  6. Step 6: Final answer
    x = 649,713.15

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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.