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Finding the Fourth Proportional to 571,132.58, 855,797.62 and 210,807.49

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Solution

The fourth proportional to 571,132.58, 855,797.62 and 210,807.49 is: 315,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,132.58 : 855,797.62 = 210,807.49 : x
  2. Step 2: Convert to fraction form
    571,132.58/855,797.62 = 210,807.49/x
  3. Step 3: Cross multiply
    571,132.58x = 855,797.62 × 210,807.49
  4. Step 4: Simplify right side
    571,132.58x = 180,408,548,220.17
  5. Step 5: Solve for x
    x = 180,408,548,220.17/571,132.58
  6. Step 6: Final answer
    x = 315,878.58

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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.