Home / 813,683.46-1,122,949.41-451,220.82

Finding the Fourth Proportional to 813,683.46, 1,122,949.41 and 451,220.82

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Solution

The fourth proportional to 813,683.46, 1,122,949.41 and 451,220.82 is: 622,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,683.46 : 1,122,949.41 = 451,220.82 : x
  2. Step 2: Convert to fraction form
    813,683.46/1,122,949.41 = 451,220.82/x
  3. Step 3: Cross multiply
    813,683.46x = 1,122,949.41 × 451,220.82
  4. Step 4: Simplify right side
    813,683.46x = 506,698,153,598.72
  5. Step 5: Solve for x
    x = 506,698,153,598.72/813,683.46
  6. Step 6: Final answer
    x = 622,721.46

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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.