Home / 1,153,082.96-1,591,187.64-643,817.60

Finding the Fourth Proportional to 1,153,082.96, 1,591,187.64 and 643,817.60

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Solution

The fourth proportional to 1,153,082.96, 1,591,187.64 and 643,817.60 is: 888,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,082.96 : 1,591,187.64 = 643,817.60 : x
  2. Step 2: Convert to fraction form
    1,153,082.96/1,591,187.64 = 643,817.60/x
  3. Step 3: Cross multiply
    1,153,082.96x = 1,591,187.64 × 643,817.60
  4. Step 4: Simplify right side
    1,153,082.96x = 1,024,434,607,534.46
  5. Step 5: Solve for x
    x = 1,024,434,607,534.46/1,153,082.96
  6. Step 6: Final answer
    x = 888,430.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.