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Finding the Fourth Proportional to 571,596.98, 788,843.49 and 316,971.86

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Solution

The fourth proportional to 571,596.98, 788,843.49 and 316,971.86 is: 437,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,596.98 : 788,843.49 = 316,971.86 : x
  2. Step 2: Convert to fraction form
    571,596.98/788,843.49 = 316,971.86/x
  3. Step 3: Cross multiply
    571,596.98x = 788,843.49 × 316,971.86
  4. Step 4: Simplify right side
    571,596.98x = 250,041,188,274.19
  5. Step 5: Solve for x
    x = 250,041,188,274.19/571,596.98
  6. Step 6: Final answer
    x = 437,443.16

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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.