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Finding the Fourth Proportional to 372,167, 513,574.82 and 211,032.90

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Solution

The fourth proportional to 372,167, 513,574.82 and 211,032.90 is: 291,216.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,167 : 513,574.82 = 211,032.90 : x
  2. Step 2: Convert to fraction form
    372,167/513,574.82 = 211,032.90/x
  3. Step 3: Cross multiply
    372,167x = 513,574.82 × 211,032.90
  4. Step 4: Simplify right side
    372,167x = 108,381,183,631.58
  5. Step 5: Solve for x
    x = 108,381,183,631.58/372,167
  6. Step 6: Final answer
    x = 291,216.53

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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.