Home / 828,021.15-1,240,764.21-557,146.15

Finding the Fourth Proportional to 828,021.15, 1,240,764.21 and 557,146.15

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Solution

The fourth proportional to 828,021.15, 1,240,764.21 and 557,146.15 is: 834,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,021.15 : 1,240,764.21 = 557,146.15 : x
  2. Step 2: Convert to fraction form
    828,021.15/1,240,764.21 = 557,146.15/x
  3. Step 3: Cross multiply
    828,021.15x = 1,240,764.21 × 557,146.15
  4. Step 4: Simplify right side
    828,021.15x = 691,286,999,557.38
  5. Step 5: Solve for x
    x = 691,286,999,557.38/828,021.15
  6. Step 6: Final answer
    x = 834,866.36

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Double scale
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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.