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Finding the Fourth Proportional to 343,764.40, 515,646.60 and 343,764.40

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Solution

The fourth proportional to 343,764.40, 515,646.60 and 343,764.40 is: 515,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,764.40 : 515,646.60 = 343,764.40 : x
  2. Step 2: Convert to fraction form
    343,764.40/515,646.60 = 343,764.40/x
  3. Step 3: Cross multiply
    343,764.40x = 515,646.60 × 343,764.40
  4. Step 4: Simplify right side
    343,764.40x = 177,260,944,061.04
  5. Step 5: Solve for x
    x = 177,260,944,061.04/343,764.40
  6. Step 6: Final answer
    x = 515,646.60

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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.