Home / 389,560.20-537,593.61-219,810.12

Finding the Fourth Proportional to 389,560.20, 537,593.61 and 219,810.12

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Solution

The fourth proportional to 389,560.20, 537,593.61 and 219,810.12 is: 303,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,560.20 : 537,593.61 = 219,810.12 : x
  2. Step 2: Convert to fraction form
    389,560.20/537,593.61 = 219,810.12/x
  3. Step 3: Cross multiply
    389,560.20x = 537,593.61 × 219,810.12
  4. Step 4: Simplify right side
    389,560.20x = 118,168,515,925.33
  5. Step 5: Solve for x
    x = 118,168,515,925.33/389,560.20
  6. Step 6: Final answer
    x = 303,338.27

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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.