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Finding the Fourth Proportional to 531,436.80, 797,621.76 and 295,046.40

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Solution

The fourth proportional to 531,436.80, 797,621.76 and 295,046.40 is: 442,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,436.80 : 797,621.76 = 295,046.40 : x
  2. Step 2: Convert to fraction form
    531,436.80/797,621.76 = 295,046.40/x
  3. Step 3: Cross multiply
    531,436.80x = 797,621.76 × 295,046.40
  4. Step 4: Simplify right side
    531,436.80x = 235,335,428,849.66
  5. Step 5: Solve for x
    x = 235,335,428,849.66/531,436.80
  6. Step 6: Final answer
    x = 442,828.63

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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.