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Finding the Fourth Proportional to 294,151.20, 441,409.20 and 154,010.40

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Solution

The fourth proportional to 294,151.20, 441,409.20 and 154,010.40 is: 231,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,151.20 : 441,409.20 = 154,010.40 : x
  2. Step 2: Convert to fraction form
    294,151.20/441,409.20 = 154,010.40/x
  3. Step 3: Cross multiply
    294,151.20x = 441,409.20 × 154,010.40
  4. Step 4: Simplify right side
    294,151.20x = 67,981,607,455.68
  5. Step 5: Solve for x
    x = 67,981,607,455.68/294,151.20
  6. Step 6: Final answer
    x = 231,111.10

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1.5x scale

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.