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Finding the Fourth Proportional to 572,151.69, 789,606.29 and 317,502.88

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Solution

The fourth proportional to 572,151.69, 789,606.29 and 317,502.88 is: 438,174.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,151.69 : 789,606.29 = 317,502.88 : x
  2. Step 2: Convert to fraction form
    572,151.69/789,606.29 = 317,502.88/x
  3. Step 3: Cross multiply
    572,151.69x = 789,606.29 × 317,502.88
  4. Step 4: Simplify right side
    572,151.69x = 250,702,271,141.12
  5. Step 5: Solve for x
    x = 250,702,271,141.12/572,151.69
  6. Step 6: Final answer
    x = 438,174.48

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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.