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Finding the Fourth Proportional to 583,223.82, 874,835.73 and 139,991.82

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Solution

The fourth proportional to 583,223.82, 874,835.73 and 139,991.82 is: 209,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,223.82 : 874,835.73 = 139,991.82 : x
  2. Step 2: Convert to fraction form
    583,223.82/874,835.73 = 139,991.82/x
  3. Step 3: Cross multiply
    583,223.82x = 874,835.73 × 139,991.82
  4. Step 4: Simplify right side
    583,223.82x = 122,469,841,669.55
  5. Step 5: Solve for x
    x = 122,469,841,669.55/583,223.82
  6. Step 6: Final answer
    x = 209,987.72

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Double scale
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Similar ratio
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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.