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Finding the Fourth Proportional to 638,153.29, 956,891.22 and 188,812.27

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Solution

The fourth proportional to 638,153.29, 956,891.22 and 188,812.27 is: 283,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,153.29 : 956,891.22 = 188,812.27 : x
  2. Step 2: Convert to fraction form
    638,153.29/956,891.22 = 188,812.27/x
  3. Step 3: Cross multiply
    638,153.29x = 956,891.22 × 188,812.27
  4. Step 4: Simplify right side
    638,153.29x = 180,672,803,391.27
  5. Step 5: Solve for x
    x = 180,672,803,391.27/638,153.29
  6. Step 6: Final answer
    x = 283,118.19

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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.