Home / 643,914.04-965,652.34-223,091.68

Finding the Fourth Proportional to 643,914.04, 965,652.34 and 223,091.68

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Solution

The fourth proportional to 643,914.04, 965,652.34 and 223,091.68 is: 334,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,914.04 : 965,652.34 = 223,091.68 : x
  2. Step 2: Convert to fraction form
    643,914.04/965,652.34 = 223,091.68/x
  3. Step 3: Cross multiply
    643,914.04x = 965,652.34 × 223,091.68
  4. Step 4: Simplify right side
    643,914.04x = 215,429,002,826.53
  5. Step 5: Solve for x
    x = 215,429,002,826.53/643,914.04
  6. Step 6: Final answer
    x = 334,561.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.