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Finding the Fourth Proportional to 576,733.50, 795,876.71 and 318,604.86

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Solution

The fourth proportional to 576,733.50, 795,876.71 and 318,604.86 is: 439,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,733.50 : 795,876.71 = 318,604.86 : x
  2. Step 2: Convert to fraction form
    576,733.50/795,876.71 = 318,604.86/x
  3. Step 3: Cross multiply
    576,733.50x = 795,876.71 × 318,604.86
  4. Step 4: Simplify right side
    576,733.50x = 253,570,186,173.79
  5. Step 5: Solve for x
    x = 253,570,186,173.79/576,733.50
  6. Step 6: Final answer
    x = 439,666.13

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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.