Home / 385,251.93-531,618.80-215,453.25

Finding the Fourth Proportional to 385,251.93, 531,618.80 and 215,453.25

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Solution

The fourth proportional to 385,251.93, 531,618.80 and 215,453.25 is: 297,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,251.93 : 531,618.80 = 215,453.25 : x
  2. Step 2: Convert to fraction form
    385,251.93/531,618.80 = 215,453.25/x
  3. Step 3: Cross multiply
    385,251.93x = 531,618.80 × 215,453.25
  4. Step 4: Simplify right side
    385,251.93x = 114,538,997,143.83
  5. Step 5: Solve for x
    x = 114,538,997,143.83/385,251.93
  6. Step 6: Final answer
    x = 297,309.34

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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.