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Finding the Fourth Proportional to 404,710.80, 558,501.73 and 223,422.98

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Solution

The fourth proportional to 404,710.80, 558,501.73 and 223,422.98 is: 308,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,710.80 : 558,501.73 = 223,422.98 : x
  2. Step 2: Convert to fraction form
    404,710.80/558,501.73 = 223,422.98/x
  3. Step 3: Cross multiply
    404,710.80x = 558,501.73 × 223,422.98
  4. Step 4: Simplify right side
    404,710.80x = 124,782,120,851.76
  5. Step 5: Solve for x
    x = 124,782,120,851.76/404,710.80
  6. Step 6: Final answer
    x = 308,324.17

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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.