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Finding the Fourth Proportional to 576,681.68, 795,843.23 and 318,571.94

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Solution

The fourth proportional to 576,681.68, 795,843.23 and 318,571.94 is: 439,641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,681.68 : 795,843.23 = 318,571.94 : x
  2. Step 2: Convert to fraction form
    576,681.68/795,843.23 = 318,571.94/x
  3. Step 3: Cross multiply
    576,681.68x = 795,843.23 × 318,571.94
  4. Step 4: Simplify right side
    576,681.68x = 253,533,316,144.89
  5. Step 5: Solve for x
    x = 253,533,316,144.89/576,681.68
  6. Step 6: Final answer
    x = 439,641.71

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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.