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Finding the Fourth Proportional to 572,490.56, 790,006.13 and 317,825.34

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Solution

The fourth proportional to 572,490.56, 790,006.13 and 317,825.34 is: 438,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,490.56 : 790,006.13 = 317,825.34 : x
  2. Step 2: Convert to fraction form
    572,490.56/790,006.13 = 317,825.34/x
  3. Step 3: Cross multiply
    572,490.56x = 790,006.13 × 317,825.34
  4. Step 4: Simplify right side
    572,490.56x = 251,083,971,222.34
  5. Step 5: Solve for x
    x = 251,083,971,222.34/572,490.56
  6. Step 6: Final answer
    x = 438,581.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.