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Finding the Fourth Proportional to 1,269,664,832.02, 1,752,159,129.81 and 697,472,012.15

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Solution

The fourth proportional to 1,269,664,832.02, 1,752,159,129.81 and 697,472,012.15 is: 962,523,276.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,664,832.02 : 1,752,159,129.81 = 697,472,012.15 : x
  2. Step 2: Convert to fraction form
    1,269,664,832.02/1,752,159,129.81 = 697,472,012.15/x
  3. Step 3: Cross multiply
    1,269,664,832.02x = 1,752,159,129.81 × 697,472,012.15
  4. Step 4: Simplify right side
    1,269,664,832.02x = 1,222,081,953,875,573,760
  5. Step 5: Solve for x
    x = 1,222,081,953,875,573,760/1,269,664,832.02
  6. Step 6: Final answer
    x = 962,523,276.27

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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.