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Finding the Fourth Proportional to 261,162.87, 359,486.71 and 228,821.24

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Solution

The fourth proportional to 261,162.87, 359,486.71 and 228,821.24 is: 314,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,162.87 : 359,486.71 = 228,821.24 : x
  2. Step 2: Convert to fraction form
    261,162.87/359,486.71 = 228,821.24/x
  3. Step 3: Cross multiply
    261,162.87x = 359,486.71 × 228,821.24
  4. Step 4: Simplify right side
    261,162.87x = 82,258,193,050.27
  5. Step 5: Solve for x
    x = 82,258,193,050.27/261,162.87
  6. Step 6: Final answer
    x = 314,968.95

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1.5x scale

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.