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Finding the Fourth Proportional to 807,796.80, 1,211,752.80 and 246,830.40

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Solution

The fourth proportional to 807,796.80, 1,211,752.80 and 246,830.40 is: 370,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,796.80 : 1,211,752.80 = 246,830.40 : x
  2. Step 2: Convert to fraction form
    807,796.80/1,211,752.80 = 246,830.40/x
  3. Step 3: Cross multiply
    807,796.80x = 1,211,752.80 × 246,830.40
  4. Step 4: Simplify right side
    807,796.80x = 299,097,428,325.12
  5. Step 5: Solve for x
    x = 299,097,428,325.12/807,796.80
  6. Step 6: Final answer
    x = 370,263.20

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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.