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Finding the Fourth Proportional to 607,294.67, 911,497.46 and 307,981.85

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Solution

The fourth proportional to 607,294.67, 911,497.46 and 307,981.85 is: 462,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,294.67 : 911,497.46 = 307,981.85 : x
  2. Step 2: Convert to fraction form
    607,294.67/911,497.46 = 307,981.85/x
  3. Step 3: Cross multiply
    607,294.67x = 911,497.46 × 307,981.85
  4. Step 4: Simplify right side
    607,294.67x = 280,724,667,903.70
  5. Step 5: Solve for x
    x = 280,724,667,903.70/607,294.67
  6. Step 6: Final answer
    x = 462,254.46

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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.