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Finding the Fourth Proportional to 375,938.72, 518,565.62 and 222,874.37

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Solution

The fourth proportional to 375,938.72, 518,565.62 and 222,874.37 is: 307,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,938.72 : 518,565.62 = 222,874.37 : x
  2. Step 2: Convert to fraction form
    375,938.72/518,565.62 = 222,874.37/x
  3. Step 3: Cross multiply
    375,938.72x = 518,565.62 × 222,874.37
  4. Step 4: Simplify right side
    375,938.72x = 115,574,985,861.16
  5. Step 5: Solve for x
    x = 115,574,985,861.16/375,938.72
  6. Step 6: Final answer
    x = 307,430.39

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1.5x scale

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.