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Finding the Fourth Proportional to 572,398.91, 858,416.06 and 188,058.53

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Solution

The fourth proportional to 572,398.91, 858,416.06 and 188,058.53 is: 282,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,398.91 : 858,416.06 = 188,058.53 : x
  2. Step 2: Convert to fraction form
    572,398.91/858,416.06 = 188,058.53/x
  3. Step 3: Cross multiply
    572,398.91x = 858,416.06 × 188,058.53
  4. Step 4: Simplify right side
    572,398.91x = 161,432,463,577.74
  5. Step 5: Solve for x
    x = 161,432,463,577.74/572,398.91
  6. Step 6: Final answer
    x = 282,027.90

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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.