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Finding the Fourth Proportional to 807,555,929.70, 1,211,333,894.55 and 807,555,929.70

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Solution

The fourth proportional to 807,555,929.70, 1,211,333,894.55 and 807,555,929.70 is: 1,211,333,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,555,929.70 : 1,211,333,894.55 = 807,555,929.70 : x
  2. Step 2: Convert to fraction form
    807,555,929.70/1,211,333,894.55 = 807,555,929.70/x
  3. Step 3: Cross multiply
    807,555,929.70x = 1,211,333,894.55 × 807,555,929.70
  4. Step 4: Simplify right side
    807,555,929.70x = 978,219,869,390,446,976
  5. Step 5: Solve for x
    x = 978,219,869,390,446,976/807,555,929.70
  6. Step 6: Final answer
    x = 1,211,333,894.55

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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.