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Finding the Fourth Proportional to 292,894.80, 438,823.80 and 274,232.40

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Solution

The fourth proportional to 292,894.80, 438,823.80 and 274,232.40 is: 410,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,894.80 : 438,823.80 = 274,232.40 : x
  2. Step 2: Convert to fraction form
    292,894.80/438,823.80 = 274,232.40/x
  3. Step 3: Cross multiply
    292,894.80x = 438,823.80 × 274,232.40
  4. Step 4: Simplify right side
    292,894.80x = 120,339,703,851.12
  5. Step 5: Solve for x
    x = 120,339,703,851.12/292,894.80
  6. Step 6: Final answer
    x = 410,863.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.