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Finding the Fourth Proportional to 670,323.66, 924,991.54 and 394,637.73

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Solution

The fourth proportional to 670,323.66, 924,991.54 and 394,637.73 is: 544,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,323.66 : 924,991.54 = 394,637.73 : x
  2. Step 2: Convert to fraction form
    670,323.66/924,991.54 = 394,637.73/x
  3. Step 3: Cross multiply
    670,323.66x = 924,991.54 × 394,637.73
  4. Step 4: Simplify right side
    670,323.66x = 365,036,561,614.80
  5. Step 5: Solve for x
    x = 365,036,561,614.80/670,323.66
  6. Step 6: Final answer
    x = 544,567.62

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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.