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Finding the Fourth Proportional to 404,688.56, 558,474.75 and 223,400.63

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Solution

The fourth proportional to 404,688.56, 558,474.75 and 223,400.63 is: 308,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,688.56 : 558,474.75 = 223,400.63 : x
  2. Step 2: Convert to fraction form
    404,688.56/558,474.75 = 223,400.63/x
  3. Step 3: Cross multiply
    404,688.56x = 558,474.75 × 223,400.63
  4. Step 4: Simplify right side
    404,688.56x = 124,763,612,385.28
  5. Step 5: Solve for x
    x = 124,763,612,385.28/404,688.56
  6. Step 6: Final answer
    x = 308,295.38

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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.