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Finding the Fourth Proportional to 607,911.30, 910,882.80 and 572,481.90

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Solution

The fourth proportional to 607,911.30, 910,882.80 and 572,481.90 is: 857,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,911.30 : 910,882.80 = 572,481.90 : x
  2. Step 2: Convert to fraction form
    607,911.30/910,882.80 = 572,481.90/x
  3. Step 3: Cross multiply
    607,911.30x = 910,882.80 × 572,481.90
  4. Step 4: Simplify right side
    607,911.30x = 521,463,916,021.32
  5. Step 5: Solve for x
    x = 521,463,916,021.32/607,911.30
  6. Step 6: Final answer
    x = 857,796.06

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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.