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Finding the Fourth Proportional to 539,143.66, 808,715.58 and 254,862.82

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Solution

The fourth proportional to 539,143.66, 808,715.58 and 254,862.82 is: 382,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,143.66 : 808,715.58 = 254,862.82 : x
  2. Step 2: Convert to fraction form
    539,143.66/808,715.58 = 254,862.82/x
  3. Step 3: Cross multiply
    539,143.66x = 808,715.58 × 254,862.82
  4. Step 4: Simplify right side
    539,143.66x = 206,111,533,296.74
  5. Step 5: Solve for x
    x = 206,111,533,296.74/539,143.66
  6. Step 6: Final answer
    x = 382,294.27

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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.