Home / 813,683.88-1,122,950.06-451,221.40

Finding the Fourth Proportional to 813,683.88, 1,122,950.06 and 451,221.40

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Solution

The fourth proportional to 813,683.88, 1,122,950.06 and 451,221.40 is: 622,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,683.88 : 1,122,950.06 = 451,221.40 : x
  2. Step 2: Convert to fraction form
    813,683.88/1,122,950.06 = 451,221.40/x
  3. Step 3: Cross multiply
    813,683.88x = 1,122,950.06 × 451,221.40
  4. Step 4: Simplify right side
    813,683.88x = 506,699,098,203.28
  5. Step 5: Solve for x
    x = 506,699,098,203.28/813,683.88
  6. Step 6: Final answer
    x = 622,722.30

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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.