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Finding the Fourth Proportional to 572,617.56, 857,215.62 and 347,295

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Solution

The fourth proportional to 572,617.56, 857,215.62 and 347,295 is: 519,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,617.56 : 857,215.62 = 347,295 : x
  2. Step 2: Convert to fraction form
    572,617.56/857,215.62 = 347,295/x
  3. Step 3: Cross multiply
    572,617.56x = 857,215.62 × 347,295
  4. Step 4: Simplify right side
    572,617.56x = 297,706,698,747.90
  5. Step 5: Solve for x
    x = 297,706,698,747.90/572,617.56
  6. Step 6: Final answer
    x = 519,904.94

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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.