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Finding the Fourth Proportional to 608,905.70, 913,358.55 and 584,411.30

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Solution

The fourth proportional to 608,905.70, 913,358.55 and 584,411.30 is: 876,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,905.70 : 913,358.55 = 584,411.30 : x
  2. Step 2: Convert to fraction form
    608,905.70/913,358.55 = 584,411.30/x
  3. Step 3: Cross multiply
    608,905.70x = 913,358.55 × 584,411.30
  4. Step 4: Simplify right side
    608,905.70x = 533,777,057,571.62
  5. Step 5: Solve for x
    x = 533,777,057,571.62/608,905.70
  6. Step 6: Final answer
    x = 876,616.95

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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.