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Finding the Fourth Proportional to 431,543.10, 595,784.62 and 383,663.96

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Solution

The fourth proportional to 431,543.10, 595,784.62 and 383,663.96 is: 529,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,543.10 : 595,784.62 = 383,663.96 : x
  2. Step 2: Convert to fraction form
    431,543.10/595,784.62 = 383,663.96/x
  3. Step 3: Cross multiply
    431,543.10x = 595,784.62 × 383,663.96
  4. Step 4: Simplify right side
    431,543.10x = 228,581,086,616.30
  5. Step 5: Solve for x
    x = 228,581,086,616.30/431,543.10
  6. Step 6: Final answer
    x = 529,683.10

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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.