Home / 856,184.40-1,182,328.68-640,950.80

Finding the Fourth Proportional to 856,184.40, 1,182,328.68 and 640,950.80

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Solution

The fourth proportional to 856,184.40, 1,182,328.68 and 640,950.80 is: 885,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,184.40 : 1,182,328.68 = 640,950.80 : x
  2. Step 2: Convert to fraction form
    856,184.40/1,182,328.68 = 640,950.80/x
  3. Step 3: Cross multiply
    856,184.40x = 1,182,328.68 × 640,950.80
  4. Step 4: Simplify right side
    856,184.40x = 757,814,513,308.94
  5. Step 5: Solve for x
    x = 757,814,513,308.94/856,184.40
  6. Step 6: Final answer
    x = 885,106.66

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Double scale
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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.