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Finding the Fourth Proportional to 404,801.50, 558,634.95 and 223,512.94

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Solution

The fourth proportional to 404,801.50, 558,634.95 and 223,512.94 is: 308,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,801.50 : 558,634.95 = 223,512.94 : x
  2. Step 2: Convert to fraction form
    404,801.50/558,634.95 = 223,512.94/x
  3. Step 3: Cross multiply
    404,801.50x = 558,634.95 × 223,512.94
  4. Step 4: Simplify right side
    404,801.50x = 124,862,140,061.25
  5. Step 5: Solve for x
    x = 124,862,140,061.25/404,801.50
  6. Step 6: Final answer
    x = 308,452.76

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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.