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Finding the Fourth Proportional to 514,830.80, 772,764.60 and 248,805.20

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Solution

The fourth proportional to 514,830.80, 772,764.60 and 248,805.20 is: 373,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,830.80 : 772,764.60 = 248,805.20 : x
  2. Step 2: Convert to fraction form
    514,830.80/772,764.60 = 248,805.20/x
  3. Step 3: Cross multiply
    514,830.80x = 772,764.60 × 248,805.20
  4. Step 4: Simplify right side
    514,830.80x = 192,267,850,855.92
  5. Step 5: Solve for x
    x = 192,267,850,855.92/514,830.80
  6. Step 6: Final answer
    x = 373,458.33

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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.