Home / 779,840.80-1,168,886.40-443,042.80

Finding the Fourth Proportional to 779,840.80, 1,168,886.40 and 443,042.80

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Solution

The fourth proportional to 779,840.80, 1,168,886.40 and 443,042.80 is: 664,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,840.80 : 1,168,886.40 = 443,042.80 : x
  2. Step 2: Convert to fraction form
    779,840.80/1,168,886.40 = 443,042.80/x
  3. Step 3: Cross multiply
    779,840.80x = 1,168,886.40 × 443,042.80
  4. Step 4: Simplify right side
    779,840.80x = 517,866,703,537.92
  5. Step 5: Solve for x
    x = 517,866,703,537.92/779,840.80
  6. Step 6: Final answer
    x = 664,067.21

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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.