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Finding the Fourth Proportional to 575,808.72, 794,612.20 and 317,698.96

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Solution

The fourth proportional to 575,808.72, 794,612.20 and 317,698.96 is: 438,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,808.72 : 794,612.20 = 317,698.96 : x
  2. Step 2: Convert to fraction form
    575,808.72/794,612.20 = 317,698.96/x
  3. Step 3: Cross multiply
    575,808.72x = 794,612.20 × 317,698.96
  4. Step 4: Simplify right side
    575,808.72x = 252,447,469,543.31
  5. Step 5: Solve for x
    x = 252,447,469,543.31/575,808.72
  6. Step 6: Final answer
    x = 438,422.45

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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.