Home / 386,377.18-533,200.14-216,611.34

Finding the Fourth Proportional to 386,377.18, 533,200.14 and 216,611.34

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Solution

The fourth proportional to 386,377.18, 533,200.14 and 216,611.34 is: 298,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,377.18 : 533,200.14 = 216,611.34 : x
  2. Step 2: Convert to fraction form
    386,377.18/533,200.14 = 216,611.34/x
  3. Step 3: Cross multiply
    386,377.18x = 533,200.14 × 216,611.34
  4. Step 4: Simplify right side
    386,377.18x = 115,497,196,813.59
  5. Step 5: Solve for x
    x = 115,497,196,813.59/386,377.18
  6. Step 6: Final answer
    x = 298,923.44

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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.