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Finding the Fourth Proportional to 462,614.40, 693,921.60 and 275,990.40

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Solution

The fourth proportional to 462,614.40, 693,921.60 and 275,990.40 is: 413,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,614.40 : 693,921.60 = 275,990.40 : x
  2. Step 2: Convert to fraction form
    462,614.40/693,921.60 = 275,990.40/x
  3. Step 3: Cross multiply
    462,614.40x = 693,921.60 × 275,990.40
  4. Step 4: Simplify right side
    462,614.40x = 191,515,699,952.64
  5. Step 5: Solve for x
    x = 191,515,699,952.64/462,614.40
  6. Step 6: Final answer
    x = 413,985.60

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Similar ratio
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1.5x scale

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.