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Finding the Fourth Proportional to 356,999.60, 534,462.60 and 346,631.60

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Solution

The fourth proportional to 356,999.60, 534,462.60 and 346,631.60 is: 518,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,999.60 : 534,462.60 = 346,631.60 : x
  2. Step 2: Convert to fraction form
    356,999.60/534,462.60 = 346,631.60/x
  3. Step 3: Cross multiply
    356,999.60x = 534,462.60 × 346,631.60
  4. Step 4: Simplify right side
    356,999.60x = 185,261,626,178.16
  5. Step 5: Solve for x
    x = 185,261,626,178.16/356,999.60
  6. Step 6: Final answer
    x = 518,940.71

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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.