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Finding the Fourth Proportional to 667,297.64, 917,884.32 and 585,221.96

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Solution

The fourth proportional to 667,297.64, 917,884.32 and 585,221.96 is: 804,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,297.64 : 917,884.32 = 585,221.96 : x
  2. Step 2: Convert to fraction form
    667,297.64/917,884.32 = 585,221.96/x
  3. Step 3: Cross multiply
    667,297.64x = 917,884.32 × 585,221.96
  4. Step 4: Simplify right side
    667,297.64x = 537,166,060,803.67
  5. Step 5: Solve for x
    x = 537,166,060,803.67/667,297.64
  6. Step 6: Final answer
    x = 804,987.20

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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.