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Finding the Fourth Proportional to 554,906,228.80, 832,107,400.80 and 209,745,140.80

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Solution

The fourth proportional to 554,906,228.80, 832,107,400.80 and 209,745,140.80 is: 314,522,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,906,228.80 : 832,107,400.80 = 209,745,140.80 : x
  2. Step 2: Convert to fraction form
    554,906,228.80/832,107,400.80 = 209,745,140.80/x
  3. Step 3: Cross multiply
    554,906,228.80x = 832,107,400.80 × 209,745,140.80
  4. Step 4: Simplify right side
    554,906,228.80x = 174,530,483,941,518,048
  5. Step 5: Solve for x
    x = 174,530,483,941,518,048/554,906,228.80
  6. Step 6: Final answer
    x = 314,522,481.25

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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.