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Finding the Fourth Proportional to 575,966.80, 794,834.52 and 321,317.98

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Solution

The fourth proportional to 575,966.80, 794,834.52 and 321,317.98 is: 443,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,966.80 : 794,834.52 = 321,317.98 : x
  2. Step 2: Convert to fraction form
    575,966.80/794,834.52 = 321,317.98/x
  3. Step 3: Cross multiply
    575,966.80x = 794,834.52 × 321,317.98
  4. Step 4: Simplify right side
    575,966.80x = 255,394,622,400.67
  5. Step 5: Solve for x
    x = 255,394,622,400.67/575,966.80
  6. Step 6: Final answer
    x = 443,419.00

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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.