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Finding the Fourth Proportional to 372,162.69, 513,573.53 and 211,032.45

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Solution

The fourth proportional to 372,162.69, 513,573.53 and 211,032.45 is: 291,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,162.69 : 513,573.53 = 211,032.45 : x
  2. Step 2: Convert to fraction form
    372,162.69/513,573.53 = 211,032.45/x
  3. Step 3: Cross multiply
    372,162.69x = 513,573.53 × 211,032.45
  4. Step 4: Simplify right side
    372,162.69x = 108,380,680,291.05
  5. Step 5: Solve for x
    x = 108,380,680,291.05/372,162.69
  6. Step 6: Final answer
    x = 291,218.55

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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.