Home / 941,040.75-1,298,642.31-511,320.78

Finding the Fourth Proportional to 941,040.75, 1,298,642.31 and 511,320.78

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Solution

The fourth proportional to 941,040.75, 1,298,642.31 and 511,320.78 is: 705,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,040.75 : 1,298,642.31 = 511,320.78 : x
  2. Step 2: Convert to fraction form
    941,040.75/1,298,642.31 = 511,320.78/x
  3. Step 3: Cross multiply
    941,040.75x = 1,298,642.31 × 511,320.78
  4. Step 4: Simplify right side
    941,040.75x = 664,022,798,890.20
  5. Step 5: Solve for x
    x = 664,022,798,890.20/941,040.75
  6. Step 6: Final answer
    x = 705,625.98

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Double scale
Find fourth proportional to 941,041.75, 1,298,643.69 and 511,321.78
Similar ratio
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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.