Home / 841,210.20-1,261,815.30-542,028.60

Finding the Fourth Proportional to 841,210.20, 1,261,815.30 and 542,028.60

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Solution

The fourth proportional to 841,210.20, 1,261,815.30 and 542,028.60 is: 813,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,210.20 : 1,261,815.30 = 542,028.60 : x
  2. Step 2: Convert to fraction form
    841,210.20/1,261,815.30 = 542,028.60/x
  3. Step 3: Cross multiply
    841,210.20x = 1,261,815.30 × 542,028.60
  4. Step 4: Simplify right side
    841,210.20x = 683,939,980,517.58
  5. Step 5: Solve for x
    x = 683,939,980,517.58/841,210.20
  6. Step 6: Final answer
    x = 813,042.90

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1.5x scale

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.