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Finding the Fourth Proportional to 404,701.72, 558,492.89 and 223,413.75

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Solution

The fourth proportional to 404,701.72, 558,492.89 and 223,413.75 is: 308,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,701.72 : 558,492.89 = 223,413.75 : x
  2. Step 2: Convert to fraction form
    404,701.72/558,492.89 = 223,413.75/x
  3. Step 3: Cross multiply
    404,701.72x = 558,492.89 × 223,413.75
  4. Step 4: Simplify right side
    404,701.72x = 124,774,990,903.24
  5. Step 5: Solve for x
    x = 124,774,990,903.24/404,701.72
  6. Step 6: Final answer
    x = 308,313.47

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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.