Home / 856,207.02-1,182,359.91-640,973.46

Finding the Fourth Proportional to 856,207.02, 1,182,359.91 and 640,973.46

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Solution

The fourth proportional to 856,207.02, 1,182,359.91 and 640,973.46 is: 885,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,207.02 : 1,182,359.91 = 640,973.46 : x
  2. Step 2: Convert to fraction form
    856,207.02/1,182,359.91 = 640,973.46/x
  3. Step 3: Cross multiply
    856,207.02x = 1,182,359.91 × 640,973.46
  4. Step 4: Simplify right side
    856,207.02x = 757,861,322,477.99
  5. Step 5: Solve for x
    x = 757,861,322,477.99/856,207.02
  6. Step 6: Final answer
    x = 885,137.95

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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.