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Finding the Fourth Proportional to 354,586, 489,329.87 and 193,444.45

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Solution

The fourth proportional to 354,586, 489,329.87 and 193,444.45 is: 266,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,586 : 489,329.87 = 193,444.45 : x
  2. Step 2: Convert to fraction form
    354,586/489,329.87 = 193,444.45/x
  3. Step 3: Cross multiply
    354,586x = 489,329.87 × 193,444.45
  4. Step 4: Simplify right side
    354,586x = 94,658,147,570.72
  5. Step 5: Solve for x
    x = 94,658,147,570.72/354,586
  6. Step 6: Final answer
    x = 266,953.99

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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.