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Finding the Fourth Proportional to 525,404.84, 788,217.95 and 170,391.17

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Solution

The fourth proportional to 525,404.84, 788,217.95 and 170,391.17 is: 255,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,404.84 : 788,217.95 = 170,391.17 : x
  2. Step 2: Convert to fraction form
    525,404.84/788,217.95 = 170,391.17/x
  3. Step 3: Cross multiply
    525,404.84x = 788,217.95 × 170,391.17
  4. Step 4: Simplify right side
    525,404.84x = 134,305,381,112.02
  5. Step 5: Solve for x
    x = 134,305,381,112.02/525,404.84
  6. Step 6: Final answer
    x = 255,622.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.