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Finding the Fourth Proportional to 3,224,398.71, 4,839,628.32 and 1,688,496.54

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Solution

The fourth proportional to 3,224,398.71, 4,839,628.32 and 1,688,496.54 is: 2,534,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224,398.71 : 4,839,628.32 = 1,688,496.54 : x
  2. Step 2: Convert to fraction form
    3,224,398.71/4,839,628.32 = 1,688,496.54/x
  3. Step 3: Cross multiply
    3,224,398.71x = 4,839,628.32 × 1,688,496.54
  4. Step 4: Simplify right side
    3,224,398.71x = 8,171,695,673,206.01
  5. Step 5: Solve for x
    x = 8,171,695,673,206.01/3,224,398.71
  6. Step 6: Final answer
    x = 2,534,331.64

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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.