Home / 385,611.06-532,139.55-222,207.53

Finding the Fourth Proportional to 385,611.06, 532,139.55 and 222,207.53

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Solution

The fourth proportional to 385,611.06, 532,139.55 and 222,207.53 is: 306,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,611.06 : 532,139.55 = 222,207.53 : x
  2. Step 2: Convert to fraction form
    385,611.06/532,139.55 = 222,207.53/x
  3. Step 3: Cross multiply
    385,611.06x = 532,139.55 × 222,207.53
  4. Step 4: Simplify right side
    385,611.06x = 118,245,413,690.46
  5. Step 5: Solve for x
    x = 118,245,413,690.46/385,611.06
  6. Step 6: Final answer
    x = 306,644.25

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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.