Home / 856,203.55-1,182,355.11-640,969.93

Finding the Fourth Proportional to 856,203.55, 1,182,355.11 and 640,969.93

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Solution

The fourth proportional to 856,203.55, 1,182,355.11 and 640,969.93 is: 885,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,203.55 : 1,182,355.11 = 640,969.93 : x
  2. Step 2: Convert to fraction form
    856,203.55/1,182,355.11 = 640,969.93/x
  3. Step 3: Cross multiply
    856,203.55x = 1,182,355.11 × 640,969.93
  4. Step 4: Simplify right side
    856,203.55x = 757,854,072,091.84
  5. Step 5: Solve for x
    x = 757,854,072,091.84/856,203.55
  6. Step 6: Final answer
    x = 885,133.06

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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.