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Finding the Fourth Proportional to 576,723.42, 795,875.71 and 318,600.45

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Solution

The fourth proportional to 576,723.42, 795,875.71 and 318,600.45 is: 439,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,723.42 : 795,875.71 = 318,600.45 : x
  2. Step 2: Convert to fraction form
    576,723.42/795,875.71 = 318,600.45/x
  3. Step 3: Cross multiply
    576,723.42x = 795,875.71 × 318,600.45
  4. Step 4: Simplify right side
    576,723.42x = 253,566,359,150.94
  5. Step 5: Solve for x
    x = 253,566,359,150.94/576,723.42
  6. Step 6: Final answer
    x = 439,667.18

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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.