Home / 639,024.35-881,856.59-352,544.36

Finding the Fourth Proportional to 639,024.35, 881,856.59 and 352,544.36

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Solution

The fourth proportional to 639,024.35, 881,856.59 and 352,544.36 is: 486,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,024.35 : 881,856.59 = 352,544.36 : x
  2. Step 2: Convert to fraction form
    639,024.35/881,856.59 = 352,544.36/x
  3. Step 3: Cross multiply
    639,024.35x = 881,856.59 × 352,544.36
  4. Step 4: Simplify right side
    639,024.35x = 310,893,560,961.33
  5. Step 5: Solve for x
    x = 310,893,560,961.33/639,024.35
  6. Step 6: Final answer
    x = 486,512.86

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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.