Home / 400,865.53-553,040.45-228,793.05

Finding the Fourth Proportional to 400,865.53, 553,040.45 and 228,793.05

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Solution

The fourth proportional to 400,865.53, 553,040.45 and 228,793.05 is: 315,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,865.53 : 553,040.45 = 228,793.05 : x
  2. Step 2: Convert to fraction form
    400,865.53/553,040.45 = 228,793.05/x
  3. Step 3: Cross multiply
    400,865.53x = 553,040.45 × 228,793.05
  4. Step 4: Simplify right side
    400,865.53x = 126,531,808,563.67
  5. Step 5: Solve for x
    x = 126,531,808,563.67/400,865.53
  6. Step 6: Final answer
    x = 315,646.52

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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.