Home / 1,245,317.60-1,868,206.80-403,896.80

Finding the Fourth Proportional to 1,245,317.60, 1,868,206.80 and 403,896.80

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Solution

The fourth proportional to 1,245,317.60, 1,868,206.80 and 403,896.80 is: 605,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,317.60 : 1,868,206.80 = 403,896.80 : x
  2. Step 2: Convert to fraction form
    1,245,317.60/1,868,206.80 = 403,896.80/x
  3. Step 3: Cross multiply
    1,245,317.60x = 1,868,206.80 × 403,896.80
  4. Step 4: Simplify right side
    1,245,317.60x = 754,562,748,258.24
  5. Step 5: Solve for x
    x = 754,562,748,258.24/1,245,317.60
  6. Step 6: Final answer
    x = 605,919.93

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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.