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Finding the Fourth Proportional to 459,573.60, 687,999.60 and 341,767.20

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Solution

The fourth proportional to 459,573.60, 687,999.60 and 341,767.20 is: 511,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,573.60 : 687,999.60 = 341,767.20 : x
  2. Step 2: Convert to fraction form
    459,573.60/687,999.60 = 341,767.20/x
  3. Step 3: Cross multiply
    459,573.60x = 687,999.60 × 341,767.20
  4. Step 4: Simplify right side
    459,573.60x = 235,135,696,893.12
  5. Step 5: Solve for x
    x = 235,135,696,893.12/459,573.60
  6. Step 6: Final answer
    x = 511,638.83

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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.