Home / 856,169.15-1,182,307.64-640,935.54

Finding the Fourth Proportional to 856,169.15, 1,182,307.64 and 640,935.54

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Solution

The fourth proportional to 856,169.15, 1,182,307.64 and 640,935.54 is: 885,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,169.15 : 1,182,307.64 = 640,935.54 : x
  2. Step 2: Convert to fraction form
    856,169.15/1,182,307.64 = 640,935.54/x
  3. Step 3: Cross multiply
    856,169.15x = 1,182,307.64 × 640,935.54
  4. Step 4: Simplify right side
    856,169.15x = 757,782,982,484.85
  5. Step 5: Solve for x
    x = 757,782,982,484.85/856,169.15
  6. Step 6: Final answer
    x = 885,085.60

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1.5x scale

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.