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Finding the Fourth Proportional to 531,431.10, 744,556.50 and 531,431.10

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Solution

The fourth proportional to 531,431.10, 744,556.50 and 531,431.10 is: 744,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,431.10 : 744,556.50 = 531,431.10 : x
  2. Step 2: Convert to fraction form
    531,431.10/744,556.50 = 531,431.10/x
  3. Step 3: Cross multiply
    531,431.10x = 744,556.50 × 531,431.10
  4. Step 4: Simplify right side
    531,431.10x = 395,680,479,807.15
  5. Step 5: Solve for x
    x = 395,680,479,807.15/531,431.10
  6. Step 6: Final answer
    x = 744,556.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.