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Finding the Fourth Proportional to 572,499.12, 858,670.92 and 217,602.48

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Solution

The fourth proportional to 572,499.12, 858,670.92 and 217,602.48 is: 326,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,499.12 : 858,670.92 = 217,602.48 : x
  2. Step 2: Convert to fraction form
    572,499.12/858,670.92 = 217,602.48/x
  3. Step 3: Cross multiply
    572,499.12x = 858,670.92 × 217,602.48
  4. Step 4: Simplify right side
    572,499.12x = 186,848,921,695.88
  5. Step 5: Solve for x
    x = 186,848,921,695.88/572,499.12
  6. Step 6: Final answer
    x = 326,374.16

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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.