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Finding the Fourth Proportional to 486,264.70, 729,324.09 and 153,797.50

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Solution

The fourth proportional to 486,264.70, 729,324.09 and 153,797.50 is: 230,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,264.70 : 729,324.09 = 153,797.50 : x
  2. Step 2: Convert to fraction form
    486,264.70/729,324.09 = 153,797.50/x
  3. Step 3: Cross multiply
    486,264.70x = 729,324.09 × 153,797.50
  4. Step 4: Simplify right side
    486,264.70x = 112,168,221,731.78
  5. Step 5: Solve for x
    x = 112,168,221,731.78/486,264.70
  6. Step 6: Final answer
    x = 230,673.17

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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.