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Finding the Fourth Proportional to 5,903,678.70, 8,835,520.65 and 3,630,644.87

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Solution

The fourth proportional to 5,903,678.70, 8,835,520.65 and 3,630,644.87 is: 5,433,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903,678.70 : 8,835,520.65 = 3,630,644.87 : x
  2. Step 2: Convert to fraction form
    5,903,678.70/8,835,520.65 = 3,630,644.87/x
  3. Step 3: Cross multiply
    5,903,678.70x = 8,835,520.65 × 3,630,644.87
  4. Step 4: Simplify right side
    5,903,678.70x = 32,078,637,677,523.96
  5. Step 5: Solve for x
    x = 32,078,637,677,523.96/5,903,678.70
  6. Step 6: Final answer
    x = 5,433,669.29

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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.