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Finding the Fourth Proportional to 2,719,661.60, 4,079,492.40 and 946,733.60

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Solution

The fourth proportional to 2,719,661.60, 4,079,492.40 and 946,733.60 is: 1,420,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719,661.60 : 4,079,492.40 = 946,733.60 : x
  2. Step 2: Convert to fraction form
    2,719,661.60/4,079,492.40 = 946,733.60/x
  3. Step 3: Cross multiply
    2,719,661.60x = 4,079,492.40 × 946,733.60
  4. Step 4: Simplify right side
    2,719,661.60x = 3,862,192,526,024.64
  5. Step 5: Solve for x
    x = 3,862,192,526,024.64/2,719,661.60
  6. Step 6: Final answer
    x = 1,420,100.40

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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.