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Finding the Fourth Proportional to 646,659.64, 892,298.88 and 367,247.32

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Solution

The fourth proportional to 646,659.64, 892,298.88 and 367,247.32 is: 506,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,659.64 : 892,298.88 = 367,247.32 : x
  2. Step 2: Convert to fraction form
    646,659.64/892,298.88 = 367,247.32/x
  3. Step 3: Cross multiply
    646,659.64x = 892,298.88 × 367,247.32
  4. Step 4: Simplify right side
    646,659.64x = 327,694,372,319.00
  5. Step 5: Solve for x
    x = 327,694,372,319.00/646,659.64
  6. Step 6: Final answer
    x = 506,749.38

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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.