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Finding the Fourth Proportional to 701,716.40, 1,051,019.40 and 543,431.60

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Solution

The fourth proportional to 701,716.40, 1,051,019.40 and 543,431.60 is: 813,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,716.40 : 1,051,019.40 = 543,431.60 : x
  2. Step 2: Convert to fraction form
    701,716.40/1,051,019.40 = 543,431.60/x
  3. Step 3: Cross multiply
    701,716.40x = 1,051,019.40 × 543,431.60
  4. Step 4: Simplify right side
    701,716.40x = 571,157,154,173.04
  5. Step 5: Solve for x
    x = 571,157,154,173.04/701,716.40
  6. Step 6: Final answer
    x = 813,943.00

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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.