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Finding the Fourth Proportional to 567,987.52, 783,818.40 and 313,349.44

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Solution

The fourth proportional to 567,987.52, 783,818.40 and 313,349.44 is: 432,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,987.52 : 783,818.40 = 313,349.44 : x
  2. Step 2: Convert to fraction form
    567,987.52/783,818.40 = 313,349.44/x
  3. Step 3: Cross multiply
    567,987.52x = 783,818.40 × 313,349.44
  4. Step 4: Simplify right side
    567,987.52x = 245,609,056,701.70
  5. Step 5: Solve for x
    x = 245,609,056,701.70/567,987.52
  6. Step 6: Final answer
    x = 432,419.81

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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.