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Finding the Fourth Proportional to 572,665.52, 858,927 and 306,143.12

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Solution

The fourth proportional to 572,665.52, 858,927 and 306,143.12 is: 459,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,665.52 : 858,927 = 306,143.12 : x
  2. Step 2: Convert to fraction form
    572,665.52/858,927 = 306,143.12/x
  3. Step 3: Cross multiply
    572,665.52x = 858,927 × 306,143.12
  4. Step 4: Simplify right side
    572,665.52x = 262,954,591,632.24
  5. Step 5: Solve for x
    x = 262,954,591,632.24/572,665.52
  6. Step 6: Final answer
    x = 459,176.57

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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.