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Finding the Fourth Proportional to 572,324.84, 858,505.56 and 287,860.12

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Solution

The fourth proportional to 572,324.84, 858,505.56 and 287,860.12 is: 431,799.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,324.84 : 858,505.56 = 287,860.12 : x
  2. Step 2: Convert to fraction form
    572,324.84/858,505.56 = 287,860.12/x
  3. Step 3: Cross multiply
    572,324.84x = 858,505.56 × 287,860.12
  4. Step 4: Simplify right side
    572,324.84x = 247,129,513,522.27
  5. Step 5: Solve for x
    x = 247,129,513,522.27/572,324.84
  6. Step 6: Final answer
    x = 431,799.38

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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.