Home / 639,066.60-881,911.98-352,587.36

Finding the Fourth Proportional to 639,066.60, 881,911.98 and 352,587.36

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Solution

The fourth proportional to 639,066.60, 881,911.98 and 352,587.36 is: 486,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,066.60 : 881,911.98 = 352,587.36 : x
  2. Step 2: Convert to fraction form
    639,066.60/881,911.98 = 352,587.36/x
  3. Step 3: Cross multiply
    639,066.60x = 881,911.98 × 352,587.36
  4. Step 4: Simplify right side
    639,066.60x = 310,951,016,780.57
  5. Step 5: Solve for x
    x = 310,951,016,780.57/639,066.60
  6. Step 6: Final answer
    x = 486,570.60

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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.