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Finding the Fourth Proportional to 1,256,607.60, 1,882,146.60 and 1,090,719.60

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Solution

The fourth proportional to 1,256,607.60, 1,882,146.60 and 1,090,719.60 is: 1,633,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,607.60 : 1,882,146.60 = 1,090,719.60 : x
  2. Step 2: Convert to fraction form
    1,256,607.60/1,882,146.60 = 1,090,719.60/x
  3. Step 3: Cross multiply
    1,256,607.60x = 1,882,146.60 × 1,090,719.60
  4. Step 4: Simplify right side
    1,256,607.60x = 2,052,894,186,693.36
  5. Step 5: Solve for x
    x = 2,052,894,186,693.36/1,256,607.60
  6. Step 6: Final answer
    x = 1,633,679.59

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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.