Home / 385,837.10-532,455.06-213,766.22

Finding the Fourth Proportional to 385,837.10, 532,455.06 and 213,766.22

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Solution

The fourth proportional to 385,837.10, 532,455.06 and 213,766.22 is: 294,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,837.10 : 532,455.06 = 213,766.22 : x
  2. Step 2: Convert to fraction form
    385,837.10/532,455.06 = 213,766.22/x
  3. Step 3: Cross multiply
    385,837.10x = 532,455.06 × 213,766.22
  4. Step 4: Simplify right side
    385,837.10x = 113,820,905,496.07
  5. Step 5: Solve for x
    x = 113,820,905,496.07/385,837.10
  6. Step 6: Final answer
    x = 294,997.31

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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.