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Finding the Fourth Proportional to 573,687.30, 791,674.65 and 312,035.88

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Solution

The fourth proportional to 573,687.30, 791,674.65 and 312,035.88 is: 430,602.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,687.30 : 791,674.65 = 312,035.88 : x
  2. Step 2: Convert to fraction form
    573,687.30/791,674.65 = 312,035.88/x
  3. Step 3: Cross multiply
    573,687.30x = 791,674.65 × 312,035.88
  4. Step 4: Simplify right side
    573,687.30x = 247,030,896,086.44
  5. Step 5: Solve for x
    x = 247,030,896,086.44/573,687.30
  6. Step 6: Final answer
    x = 430,602.00

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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.