Home / 747,683.66-1,122,111.43-521,573.38

Finding the Fourth Proportional to 747,683.66, 1,122,111.43 and 521,573.38

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Solution

The fourth proportional to 747,683.66, 1,122,111.43 and 521,573.38 is: 782,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,683.66 : 1,122,111.43 = 521,573.38 : x
  2. Step 2: Convert to fraction form
    747,683.66/1,122,111.43 = 521,573.38/x
  3. Step 3: Cross multiply
    747,683.66x = 1,122,111.43 × 521,573.38
  4. Step 4: Simplify right side
    747,683.66x = 585,263,447,172.52
  5. Step 5: Solve for x
    x = 585,263,447,172.52/747,683.66
  6. Step 6: Final answer
    x = 782,768.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.