Home / 823,406.70-1,235,110.05-557,294.70

Finding the Fourth Proportional to 823,406.70, 1,235,110.05 and 557,294.70

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Solution

The fourth proportional to 823,406.70, 1,235,110.05 and 557,294.70 is: 835,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,406.70 : 1,235,110.05 = 557,294.70 : x
  2. Step 2: Convert to fraction form
    823,406.70/1,235,110.05 = 557,294.70/x
  3. Step 3: Cross multiply
    823,406.70x = 1,235,110.05 × 557,294.70
  4. Step 4: Simplify right side
    823,406.70x = 688,320,284,781.74
  5. Step 5: Solve for x
    x = 688,320,284,781.74/823,406.70
  6. Step 6: Final answer
    x = 835,942.05

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Double scale
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Similar ratio
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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.