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Finding the Fourth Proportional to 372,690.84, 514,314.60 and 202,926

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Solution

The fourth proportional to 372,690.84, 514,314.60 and 202,926 is: 280,038.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,690.84 : 514,314.60 = 202,926 : x
  2. Step 2: Convert to fraction form
    372,690.84/514,314.60 = 202,926/x
  3. Step 3: Cross multiply
    372,690.84x = 514,314.60 × 202,926
  4. Step 4: Simplify right side
    372,690.84x = 104,367,804,519.60
  5. Step 5: Solve for x
    x = 104,367,804,519.60/372,690.84
  6. Step 6: Final answer
    x = 280,038.56

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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.