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Finding the Fourth Proportional to 614,792.90, 848,412.56 and 342,861.12

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Solution

The fourth proportional to 614,792.90, 848,412.56 and 342,861.12 is: 473,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,792.90 : 848,412.56 = 342,861.12 : x
  2. Step 2: Convert to fraction form
    614,792.90/848,412.56 = 342,861.12/x
  3. Step 3: Cross multiply
    614,792.90x = 848,412.56 × 342,861.12
  4. Step 4: Simplify right side
    614,792.90x = 290,887,681,400.82
  5. Step 5: Solve for x
    x = 290,887,681,400.82/614,792.90
  6. Step 6: Final answer
    x = 473,147.43

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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.