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Finding the Fourth Proportional to 531,961.20, 797,276.40 and 265,796.40

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Solution

The fourth proportional to 531,961.20, 797,276.40 and 265,796.40 is: 398,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,961.20 : 797,276.40 = 265,796.40 : x
  2. Step 2: Convert to fraction form
    531,961.20/797,276.40 = 265,796.40/x
  3. Step 3: Cross multiply
    531,961.20x = 797,276.40 × 265,796.40
  4. Step 4: Simplify right side
    531,961.20x = 211,913,196,924.96
  5. Step 5: Solve for x
    x = 211,913,196,924.96/531,961.20
  6. Step 6: Final answer
    x = 398,362.13

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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.