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Finding the Fourth Proportional to 368,578.95, 508,655.32 and 207,444.43

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Solution

The fourth proportional to 368,578.95, 508,655.32 and 207,444.43 is: 286,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,578.95 : 508,655.32 = 207,444.43 : x
  2. Step 2: Convert to fraction form
    368,578.95/508,655.32 = 207,444.43/x
  3. Step 3: Cross multiply
    368,578.95x = 508,655.32 × 207,444.43
  4. Step 4: Simplify right side
    368,578.95x = 105,517,713,041.08
  5. Step 5: Solve for x
    x = 105,517,713,041.08/368,578.95
  6. Step 6: Final answer
    x = 286,282.53

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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.