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Finding the Fourth Proportional to 531,873.60, 797,810.40 and 405,902.40

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Solution

The fourth proportional to 531,873.60, 797,810.40 and 405,902.40 is: 608,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,873.60 : 797,810.40 = 405,902.40 : x
  2. Step 2: Convert to fraction form
    531,873.60/797,810.40 = 405,902.40/x
  3. Step 3: Cross multiply
    531,873.60x = 797,810.40 × 405,902.40
  4. Step 4: Simplify right side
    531,873.60x = 323,833,156,104.96
  5. Step 5: Solve for x
    x = 323,833,156,104.96/531,873.60
  6. Step 6: Final answer
    x = 608,853.60

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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.