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Finding the Fourth Proportional to 404,738.39, 558,539.80 and 223,450.67

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Solution

The fourth proportional to 404,738.39, 558,539.80 and 223,450.67 is: 308,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,738.39 : 558,539.80 = 223,450.67 : x
  2. Step 2: Convert to fraction form
    404,738.39/558,539.80 = 223,450.67/x
  3. Step 3: Cross multiply
    404,738.39x = 558,539.80 × 223,450.67
  4. Step 4: Simplify right side
    404,738.39x = 124,806,091,484.51
  5. Step 5: Solve for x
    x = 124,806,091,484.51/404,738.39
  6. Step 6: Final answer
    x = 308,362.38

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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.