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Finding the Fourth Proportional to 404,712.12, 558,503.54 and 223,424.29

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Solution

The fourth proportional to 404,712.12, 558,503.54 and 223,424.29 is: 308,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,712.12 : 558,503.54 = 223,424.29 : x
  2. Step 2: Convert to fraction form
    404,712.12/558,503.54 = 223,424.29/x
  3. Step 3: Cross multiply
    404,712.12x = 558,503.54 × 223,424.29
  4. Step 4: Simplify right side
    404,712.12x = 124,783,256,886.99
  5. Step 5: Solve for x
    x = 124,783,256,886.99/404,712.12
  6. Step 6: Final answer
    x = 308,325.97

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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.