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Finding the Fourth Proportional to 1,895,728.84, 2,616,105.54 and 1,036,292.68

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Solution

The fourth proportional to 1,895,728.84, 2,616,105.54 and 1,036,292.68 is: 1,430,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895,728.84 : 2,616,105.54 = 1,036,292.68 : x
  2. Step 2: Convert to fraction form
    1,895,728.84/2,616,105.54 = 1,036,292.68/x
  3. Step 3: Cross multiply
    1,895,728.84x = 2,616,105.54 × 1,036,292.68
  4. Step 4: Simplify right side
    1,895,728.84x = 2,711,051,021,209.45
  5. Step 5: Solve for x
    x = 2,711,051,021,209.45/1,895,728.84
  6. Step 6: Final answer
    x = 1,430,083.76

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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.