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Finding the Fourth Proportional to 576,736.70, 795,894.02 and 318,613.72

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Solution

The fourth proportional to 576,736.70, 795,894.02 and 318,613.72 is: 439,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,736.70 : 795,894.02 = 318,613.72 : x
  2. Step 2: Convert to fraction form
    576,736.70/795,894.02 = 318,613.72/x
  3. Step 3: Cross multiply
    576,736.70x = 795,894.02 × 318,613.72
  4. Step 4: Simplify right side
    576,736.70x = 253,582,754,437.95
  5. Step 5: Solve for x
    x = 253,582,754,437.95/576,736.70
  6. Step 6: Final answer
    x = 439,685.48

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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.