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Finding the Fourth Proportional to 576,723.88, 863,382.39 and 425,962.90

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Solution

The fourth proportional to 576,723.88, 863,382.39 and 425,962.90 is: 637,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,723.88 : 863,382.39 = 425,962.90 : x
  2. Step 2: Convert to fraction form
    576,723.88/863,382.39 = 425,962.90/x
  3. Step 3: Cross multiply
    576,723.88x = 863,382.39 × 425,962.90
  4. Step 4: Simplify right side
    576,723.88x = 367,768,866,653.33
  5. Step 5: Solve for x
    x = 367,768,866,653.33/576,723.88
  6. Step 6: Final answer
    x = 637,686.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.