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Finding the Fourth Proportional to 486,214.43, 671,159.80 and 365,703.73

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Solution

The fourth proportional to 486,214.43, 671,159.80 and 365,703.73 is: 504,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,214.43 : 671,159.80 = 365,703.73 : x
  2. Step 2: Convert to fraction form
    486,214.43/671,159.80 = 365,703.73/x
  3. Step 3: Cross multiply
    486,214.43x = 671,159.80 × 365,703.73
  4. Step 4: Simplify right side
    486,214.43x = 245,445,642,286.05
  5. Step 5: Solve for x
    x = 245,445,642,286.05/486,214.43
  6. Step 6: Final answer
    x = 504,809.46

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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.