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Finding the Fourth Proportional to 632,889.77, 873,512.38 and 479,660.69

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Solution

The fourth proportional to 632,889.77, 873,512.38 and 479,660.69 is: 662,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,889.77 : 873,512.38 = 479,660.69 : x
  2. Step 2: Convert to fraction form
    632,889.77/873,512.38 = 479,660.69/x
  3. Step 3: Cross multiply
    632,889.77x = 873,512.38 × 479,660.69
  4. Step 4: Simplify right side
    632,889.77x = 418,989,550,914.34
  5. Step 5: Solve for x
    x = 418,989,550,914.34/632,889.77
  6. Step 6: Final answer
    x = 662,026.11

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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.