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Finding the Fourth Proportional to 379,806.25, 524,111.34 and 207,690.07

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Solution

The fourth proportional to 379,806.25, 524,111.34 and 207,690.07 is: 286,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,806.25 : 524,111.34 = 207,690.07 : x
  2. Step 2: Convert to fraction form
    379,806.25/524,111.34 = 207,690.07/x
  3. Step 3: Cross multiply
    379,806.25x = 524,111.34 × 207,690.07
  4. Step 4: Simplify right side
    379,806.25x = 108,852,720,892.39
  5. Step 5: Solve for x
    x = 108,852,720,892.39/379,806.25
  6. Step 6: Final answer
    x = 286,600.66

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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.