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Finding the Fourth Proportional to 607,198.64, 911,353.56 and 307,885.82

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Solution

The fourth proportional to 607,198.64, 911,353.56 and 307,885.82 is: 462,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,198.64 : 911,353.56 = 307,885.82 : x
  2. Step 2: Convert to fraction form
    607,198.64/911,353.56 = 307,885.82/x
  3. Step 3: Cross multiply
    607,198.64x = 911,353.56 × 307,885.82
  4. Step 4: Simplify right side
    607,198.64x = 280,592,838,130.52
  5. Step 5: Solve for x
    x = 280,592,838,130.52/607,198.64
  6. Step 6: Final answer
    x = 462,110.45

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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.