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Finding the Fourth Proportional to 883,679.63, 1,219,375.22 and 496,441.31

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Solution

The fourth proportional to 883,679.63, 1,219,375.22 and 496,441.31 is: 685,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,679.63 : 1,219,375.22 = 496,441.31 : x
  2. Step 2: Convert to fraction form
    883,679.63/1,219,375.22 = 496,441.31/x
  3. Step 3: Cross multiply
    883,679.63x = 1,219,375.22 × 496,441.31
  4. Step 4: Simplify right side
    883,679.63x = 605,348,223,019.26
  5. Step 5: Solve for x
    x = 605,348,223,019.26/883,679.63
  6. Step 6: Final answer
    x = 685,031.32

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1.5x scale

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.