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Finding the Fourth Proportional to 557,136.92, 835,820.94 and 253,386.38

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Solution

The fourth proportional to 557,136.92, 835,820.94 and 253,386.38 is: 380,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,136.92 : 835,820.94 = 253,386.38 : x
  2. Step 2: Convert to fraction form
    557,136.92/835,820.94 = 253,386.38/x
  3. Step 3: Cross multiply
    557,136.92x = 835,820.94 × 253,386.38
  4. Step 4: Simplify right side
    557,136.92x = 211,785,642,314.80
  5. Step 5: Solve for x
    x = 211,785,642,314.80/557,136.92
  6. Step 6: Final answer
    x = 380,132.13

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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.