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Finding the Fourth Proportional to 531,902.20, 733,924.60 and 317,062.32

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Solution

The fourth proportional to 531,902.20, 733,924.60 and 317,062.32 is: 437,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,902.20 : 733,924.60 = 317,062.32 : x
  2. Step 2: Convert to fraction form
    531,902.20/733,924.60 = 317,062.32/x
  3. Step 3: Cross multiply
    531,902.20x = 733,924.60 × 317,062.32
  4. Step 4: Simplify right side
    531,902.20x = 232,699,836,381.07
  5. Step 5: Solve for x
    x = 232,699,836,381.07/531,902.20
  6. Step 6: Final answer
    x = 437,486.13

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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.