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Finding the Fourth Proportional to 693,622.20, 958,007.34 and 466,908.60

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Solution

The fourth proportional to 693,622.20, 958,007.34 and 466,908.60 is: 644,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,622.20 : 958,007.34 = 466,908.60 : x
  2. Step 2: Convert to fraction form
    693,622.20/958,007.34 = 466,908.60/x
  3. Step 3: Cross multiply
    693,622.20x = 958,007.34 × 466,908.60
  4. Step 4: Simplify right side
    693,622.20x = 447,301,865,909.12
  5. Step 5: Solve for x
    x = 447,301,865,909.12/693,622.20
  6. Step 6: Final answer
    x = 644,878.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.