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Finding the Fourth Proportional to 573,807.09, 791,851.68 and 319,158.30

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Solution

The fourth proportional to 573,807.09, 791,851.68 and 319,158.30 is: 440,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,807.09 : 791,851.68 = 319,158.30 : x
  2. Step 2: Convert to fraction form
    573,807.09/791,851.68 = 319,158.30/x
  3. Step 3: Cross multiply
    573,807.09x = 791,851.68 × 319,158.30
  4. Step 4: Simplify right side
    573,807.09x = 252,726,036,040.94
  5. Step 5: Solve for x
    x = 252,726,036,040.94/573,807.09
  6. Step 6: Final answer
    x = 440,437.28

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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.