Home / 841,211.20-1,261,816.80-542,029.60

Finding the Fourth Proportional to 841,211.20, 1,261,816.80 and 542,029.60

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Solution

The fourth proportional to 841,211.20, 1,261,816.80 and 542,029.60 is: 813,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,211.20 : 1,261,816.80 = 542,029.60 : x
  2. Step 2: Convert to fraction form
    841,211.20/1,261,816.80 = 542,029.60/x
  3. Step 3: Cross multiply
    841,211.20x = 1,261,816.80 × 542,029.60
  4. Step 4: Simplify right side
    841,211.20x = 683,942,055,377.28
  5. Step 5: Solve for x
    x = 683,942,055,377.28/841,211.20
  6. Step 6: Final answer
    x = 813,044.40

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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.