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Finding the Fourth Proportional to 368,424.84, 508,387.86 and 207,266.20

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Solution

The fourth proportional to 368,424.84, 508,387.86 and 207,266.20 is: 286,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,424.84 : 508,387.86 = 207,266.20 : x
  2. Step 2: Convert to fraction form
    368,424.84/508,387.86 = 207,266.20/x
  3. Step 3: Cross multiply
    368,424.84x = 508,387.86 × 207,266.20
  4. Step 4: Simplify right side
    368,424.84x = 105,371,619,868.33
  5. Step 5: Solve for x
    x = 105,371,619,868.33/368,424.84
  6. Step 6: Final answer
    x = 286,005.74

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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.