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Finding the Fourth Proportional to 797,192,003.80, 1,195,788,005.70 and 728,317,250.20

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Solution

The fourth proportional to 797,192,003.80, 1,195,788,005.70 and 728,317,250.20 is: 1,092,475,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,192,003.80 : 1,195,788,005.70 = 728,317,250.20 : x
  2. Step 2: Convert to fraction form
    797,192,003.80/1,195,788,005.70 = 728,317,250.20/x
  3. Step 3: Cross multiply
    797,192,003.80x = 1,195,788,005.70 × 728,317,250.20
  4. Step 4: Simplify right side
    797,192,003.80x = 870,913,032,133,566,080
  5. Step 5: Solve for x
    x = 870,913,032,133,566,080/797,192,003.80
  6. Step 6: Final answer
    x = 1,092,475,875.30

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1.5x scale

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.