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Finding the Fourth Proportional to 539,533.64, 744,556.31 and 297,816.15

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Solution

The fourth proportional to 539,533.64, 744,556.31 and 297,816.15 is: 410,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,533.64 : 744,556.31 = 297,816.15 : x
  2. Step 2: Convert to fraction form
    539,533.64/744,556.31 = 297,816.15/x
  3. Step 3: Cross multiply
    539,533.64x = 744,556.31 × 297,816.15
  4. Step 4: Simplify right side
    539,533.64x = 221,740,896,401.40
  5. Step 5: Solve for x
    x = 221,740,896,401.40/539,533.64
  6. Step 6: Final answer
    x = 410,986.23

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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.