Home / 841,630.40-1,259,335.20-766,980.80

Finding the Fourth Proportional to 841,630.40, 1,259,335.20 and 766,980.80

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Solution

The fourth proportional to 841,630.40, 1,259,335.20 and 766,980.80 is: 1,147,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,630.40 : 1,259,335.20 = 766,980.80 : x
  2. Step 2: Convert to fraction form
    841,630.40/1,259,335.20 = 766,980.80/x
  3. Step 3: Cross multiply
    841,630.40x = 1,259,335.20 × 766,980.80
  4. Step 4: Simplify right side
    841,630.40x = 965,885,919,164.16
  5. Step 5: Solve for x
    x = 965,885,919,164.16/841,630.40
  6. Step 6: Final answer
    x = 1,147,636.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.