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Finding the Fourth Proportional to 665,154.86, 997,695.39 and 591,122.18

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Solution

The fourth proportional to 665,154.86, 997,695.39 and 591,122.18 is: 886,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,154.86 : 997,695.39 = 591,122.18 : x
  2. Step 2: Convert to fraction form
    665,154.86/997,695.39 = 591,122.18/x
  3. Step 3: Cross multiply
    665,154.86x = 997,695.39 × 591,122.18
  4. Step 4: Simplify right side
    665,154.86x = 589,759,873,323.88
  5. Step 5: Solve for x
    x = 589,759,873,323.88/665,154.86
  6. Step 6: Final answer
    x = 886,650.47

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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.