Home / 385,102.11-531,400.01-212,992.73

Finding the Fourth Proportional to 385,102.11, 531,400.01 and 212,992.73

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Solution

The fourth proportional to 385,102.11, 531,400.01 and 212,992.73 is: 293,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,102.11 : 531,400.01 = 212,992.73 : x
  2. Step 2: Convert to fraction form
    385,102.11/531,400.01 = 212,992.73/x
  3. Step 3: Cross multiply
    385,102.11x = 531,400.01 × 212,992.73
  4. Step 4: Simplify right side
    385,102.11x = 113,184,338,851.93
  5. Step 5: Solve for x
    x = 113,184,338,851.93/385,102.11
  6. Step 6: Final answer
    x = 293,907.35

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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.