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Finding the Fourth Proportional to 343,374.10, 515,061.15 and 325,878.10

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Solution

The fourth proportional to 343,374.10, 515,061.15 and 325,878.10 is: 488,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,374.10 : 515,061.15 = 325,878.10 : x
  2. Step 2: Convert to fraction form
    343,374.10/515,061.15 = 325,878.10/x
  3. Step 3: Cross multiply
    343,374.10x = 515,061.15 × 325,878.10
  4. Step 4: Simplify right side
    343,374.10x = 167,847,148,945.82
  5. Step 5: Solve for x
    x = 167,847,148,945.82/343,374.10
  6. Step 6: Final answer
    x = 488,817.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.