Home / 856,202.55-1,182,353.73-640,968.93

Finding the Fourth Proportional to 856,202.55, 1,182,353.73 and 640,968.93

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Solution

The fourth proportional to 856,202.55, 1,182,353.73 and 640,968.93 is: 885,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,202.55 : 1,182,353.73 = 640,968.93 : x
  2. Step 2: Convert to fraction form
    856,202.55/1,182,353.73 = 640,968.93/x
  3. Step 3: Cross multiply
    856,202.55x = 1,182,353.73 × 640,968.93
  4. Step 4: Simplify right side
    856,202.55x = 757,852,005,199.61
  5. Step 5: Solve for x
    x = 757,852,005,199.61/856,202.55
  6. Step 6: Final answer
    x = 885,131.68

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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.