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Finding the Fourth Proportional to 573,896.68, 791,950.66 and 319,265

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Solution

The fourth proportional to 573,896.68, 791,950.66 and 319,265 is: 440,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,896.68 : 791,950.66 = 319,265 : x
  2. Step 2: Convert to fraction form
    573,896.68/791,950.66 = 319,265/x
  3. Step 3: Cross multiply
    573,896.68x = 791,950.66 × 319,265
  4. Step 4: Simplify right side
    573,896.68x = 252,842,127,464.90
  5. Step 5: Solve for x
    x = 252,842,127,464.90/573,896.68
  6. Step 6: Final answer
    x = 440,570.81

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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.