Home / 639,110.10-881,971.26-352,630.17

Finding the Fourth Proportional to 639,110.10, 881,971.26 and 352,630.17

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Solution

The fourth proportional to 639,110.10, 881,971.26 and 352,630.17 is: 486,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,110.10 : 881,971.26 = 352,630.17 : x
  2. Step 2: Convert to fraction form
    639,110.10/881,971.26 = 352,630.17/x
  3. Step 3: Cross multiply
    639,110.10x = 881,971.26 × 352,630.17
  4. Step 4: Simplify right side
    639,110.10x = 311,009,675,348.91
  5. Step 5: Solve for x
    x = 311,009,675,348.91/639,110.10
  6. Step 6: Final answer
    x = 486,629.26

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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.