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Finding the Fourth Proportional to 667,649.44, 921,360.72 and 365,854.24

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Solution

The fourth proportional to 667,649.44, 921,360.72 and 365,854.24 is: 504,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,649.44 : 921,360.72 = 365,854.24 : x
  2. Step 2: Convert to fraction form
    667,649.44/921,360.72 = 365,854.24/x
  3. Step 3: Cross multiply
    667,649.44x = 921,360.72 × 365,854.24
  4. Step 4: Simplify right side
    667,649.44x = 337,083,725,981.45
  5. Step 5: Solve for x
    x = 337,083,725,981.45/667,649.44
  6. Step 6: Final answer
    x = 504,881.31

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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.