Home / 1,153,165.57-1,591,466.88-643,966.36

Finding the Fourth Proportional to 1,153,165.57, 1,591,466.88 and 643,966.36

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Solution

The fourth proportional to 1,153,165.57, 1,591,466.88 and 643,966.36 is: 888,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,165.57 : 1,591,466.88 = 643,966.36 : x
  2. Step 2: Convert to fraction form
    1,153,165.57/1,591,466.88 = 643,966.36/x
  3. Step 3: Cross multiply
    1,153,165.57x = 1,591,466.88 × 643,966.36
  4. Step 4: Simplify right side
    1,153,165.57x = 1,024,851,133,774.16
  5. Step 5: Solve for x
    x = 1,024,851,133,774.16/1,153,165.57
  6. Step 6: Final answer
    x = 888,728.52

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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.