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Finding the Fourth Proportional to 680,066.23, 938,491.39 and 374,136.04

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Solution

The fourth proportional to 680,066.23, 938,491.39 and 374,136.04 is: 516,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,066.23 : 938,491.39 = 374,136.04 : x
  2. Step 2: Convert to fraction form
    680,066.23/938,491.39 = 374,136.04/x
  3. Step 3: Cross multiply
    680,066.23x = 938,491.39 × 374,136.04
  4. Step 4: Simplify right side
    680,066.23x = 351,123,452,228.70
  5. Step 5: Solve for x
    x = 351,123,452,228.70/680,066.23
  6. Step 6: Final answer
    x = 516,307.73

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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.