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Finding the Fourth Proportional to 1,843,643.60, 2,759,935.80 and 1,622,459.60

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Solution

The fourth proportional to 1,843,643.60, 2,759,935.80 and 1,622,459.60 is: 2,428,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843,643.60 : 2,759,935.80 = 1,622,459.60 : x
  2. Step 2: Convert to fraction form
    1,843,643.60/2,759,935.80 = 1,622,459.60/x
  3. Step 3: Cross multiply
    1,843,643.60x = 2,759,935.80 × 1,622,459.60
  4. Step 4: Simplify right side
    1,843,643.60x = 4,477,884,334,093.68
  5. Step 5: Solve for x
    x = 4,477,884,334,093.68/1,843,643.60
  6. Step 6: Final answer
    x = 2,428,823.19

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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.