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Finding the Fourth Proportional to 400,697.76, 552,963.12 and 249,795.36

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Solution

The fourth proportional to 400,697.76, 552,963.12 and 249,795.36 is: 344,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,697.76 : 552,963.12 = 249,795.36 : x
  2. Step 2: Convert to fraction form
    400,697.76/552,963.12 = 249,795.36/x
  3. Step 3: Cross multiply
    400,697.76x = 552,963.12 × 249,795.36
  4. Step 4: Simplify right side
    400,697.76x = 138,127,621,627.12
  5. Step 5: Solve for x
    x = 138,127,621,627.12/400,697.76
  6. Step 6: Final answer
    x = 344,717.73

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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.