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Finding the Fourth Proportional to 524,215.65, 786,324.21 and 159,480.45

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Solution

The fourth proportional to 524,215.65, 786,324.21 and 159,480.45 is: 239,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,215.65 : 786,324.21 = 159,480.45 : x
  2. Step 2: Convert to fraction form
    524,215.65/786,324.21 = 159,480.45/x
  3. Step 3: Cross multiply
    524,215.65x = 786,324.21 × 159,480.45
  4. Step 4: Simplify right side
    524,215.65x = 125,403,338,856.70
  5. Step 5: Solve for x
    x = 125,403,338,856.70/524,215.65
  6. Step 6: Final answer
    x = 239,220.90

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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.