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Finding the Fourth Proportional to 697,917, 963,101.20 and 426,439.32

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Solution

The fourth proportional to 697,917, 963,101.20 and 426,439.32 is: 588,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,917 : 963,101.20 = 426,439.32 : x
  2. Step 2: Convert to fraction form
    697,917/963,101.20 = 426,439.32/x
  3. Step 3: Cross multiply
    697,917x = 963,101.20 × 426,439.32
  4. Step 4: Simplify right side
    697,917x = 410,704,220,819.18
  5. Step 5: Solve for x
    x = 410,704,220,819.18/697,917
  6. Step 6: Final answer
    x = 588,471.44

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1.5x scale

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.