Home / 823,538.18-1,136,321.12-517,437.22

Finding the Fourth Proportional to 823,538.18, 1,136,321.12 and 517,437.22

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Solution

The fourth proportional to 823,538.18, 1,136,321.12 and 517,437.22 is: 713,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,538.18 : 1,136,321.12 = 517,437.22 : x
  2. Step 2: Convert to fraction form
    823,538.18/1,136,321.12 = 517,437.22/x
  3. Step 3: Cross multiply
    823,538.18x = 1,136,321.12 × 517,437.22
  4. Step 4: Simplify right side
    823,538.18x = 587,974,835,678.48
  5. Step 5: Solve for x
    x = 587,974,835,678.48/823,538.18
  6. Step 6: Final answer
    x = 713,961.85

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Double scale
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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.