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Finding the Fourth Proportional to 614,578.01, 848,114.60 and 356,507.15

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Solution

The fourth proportional to 614,578.01, 848,114.60 and 356,507.15 is: 491,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,578.01 : 848,114.60 = 356,507.15 : x
  2. Step 2: Convert to fraction form
    614,578.01/848,114.60 = 356,507.15/x
  3. Step 3: Cross multiply
    614,578.01x = 848,114.60 × 356,507.15
  4. Step 4: Simplify right side
    614,578.01x = 302,358,912,896.28
  5. Step 5: Solve for x
    x = 302,358,912,896.28/614,578.01
  6. Step 6: Final answer
    x = 491,978.09

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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.