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Finding the Fourth Proportional to 885,809.60, 1,325,949.60 and 697,803.20

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Solution

The fourth proportional to 885,809.60, 1,325,949.60 and 697,803.20 is: 1,044,526.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,809.60 : 1,325,949.60 = 697,803.20 : x
  2. Step 2: Convert to fraction form
    885,809.60/1,325,949.60 = 697,803.20/x
  3. Step 3: Cross multiply
    885,809.60x = 1,325,949.60 × 697,803.20
  4. Step 4: Simplify right side
    885,809.60x = 925,251,873,918.72
  5. Step 5: Solve for x
    x = 925,251,873,918.72/885,809.60
  6. Step 6: Final answer
    x = 1,044,526.81

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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.