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Finding the Fourth Proportional to 572,012.56, 789,377.43 and 317,363.14

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Solution

The fourth proportional to 572,012.56, 789,377.43 and 317,363.14 is: 437,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,012.56 : 789,377.43 = 317,363.14 : x
  2. Step 2: Convert to fraction form
    572,012.56/789,377.43 = 317,363.14/x
  3. Step 3: Cross multiply
    572,012.56x = 789,377.43 × 317,363.14
  4. Step 4: Simplify right side
    572,012.56x = 250,519,299,829.93
  5. Step 5: Solve for x
    x = 250,519,299,829.93/572,012.56
  6. Step 6: Final answer
    x = 437,961.19

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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.