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Finding the Fourth Proportional to 371,734.95, 513,037.95 and 220,831.95

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Solution

The fourth proportional to 371,734.95, 513,037.95 and 220,831.95 is: 304,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,734.95 : 513,037.95 = 220,831.95 : x
  2. Step 2: Convert to fraction form
    371,734.95/513,037.95 = 220,831.95/x
  3. Step 3: Cross multiply
    371,734.95x = 513,037.95 × 220,831.95
  4. Step 4: Simplify right side
    371,734.95x = 113,295,170,922.50
  5. Step 5: Solve for x
    x = 113,295,170,922.50/371,734.95
  6. Step 6: Final answer
    x = 304,774.06

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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.