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Finding the Fourth Proportional to 289,666.26, 399,755.88 and 162,350.07

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Solution

The fourth proportional to 289,666.26, 399,755.88 and 162,350.07 is: 224,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,666.26 : 399,755.88 = 162,350.07 : x
  2. Step 2: Convert to fraction form
    289,666.26/399,755.88 = 162,350.07/x
  3. Step 3: Cross multiply
    289,666.26x = 399,755.88 × 162,350.07
  4. Step 4: Simplify right side
    289,666.26x = 64,900,395,100.91
  5. Step 5: Solve for x
    x = 64,900,395,100.91/289,666.26
  6. Step 6: Final answer
    x = 224,052.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.