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Finding the Fourth Proportional to 567,870.93, 783,648.15 and 313,216.65

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Solution

The fourth proportional to 567,870.93, 783,648.15 and 313,216.65 is: 432,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,870.93 : 783,648.15 = 313,216.65 : x
  2. Step 2: Convert to fraction form
    567,870.93/783,648.15 = 313,216.65/x
  3. Step 3: Cross multiply
    567,870.93x = 783,648.15 × 313,216.65
  4. Step 4: Simplify right side
    567,870.93x = 245,451,648,321.70
  5. Step 5: Solve for x
    x = 245,451,648,321.70/567,870.93
  6. Step 6: Final answer
    x = 432,231.40

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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.