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Finding the Fourth Proportional to 501,698.50, 752,540.12 and 347,682.40

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Solution

The fourth proportional to 501,698.50, 752,540.12 and 347,682.40 is: 521,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,698.50 : 752,540.12 = 347,682.40 : x
  2. Step 2: Convert to fraction form
    501,698.50/752,540.12 = 347,682.40/x
  3. Step 3: Cross multiply
    501,698.50x = 752,540.12 × 347,682.40
  4. Step 4: Simplify right side
    501,698.50x = 261,644,955,017.89
  5. Step 5: Solve for x
    x = 261,644,955,017.89/501,698.50
  6. Step 6: Final answer
    x = 521,518.31

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1.5x scale

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.