Home / 289,780.64-399,897.01-162,456.26

Finding the Fourth Proportional to 289,780.64, 399,897.01 and 162,456.26

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Solution

The fourth proportional to 289,780.64, 399,897.01 and 162,456.26 is: 224,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,780.64 : 399,897.01 = 162,456.26 : x
  2. Step 2: Convert to fraction form
    289,780.64/399,897.01 = 162,456.26/x
  3. Step 3: Cross multiply
    289,780.64x = 399,897.01 × 162,456.26
  4. Step 4: Simplify right side
    289,780.64x = 64,965,770,224.16
  5. Step 5: Solve for x
    x = 64,965,770,224.16/289,780.64
  6. Step 6: Final answer
    x = 224,189.48

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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.