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Finding the Fourth Proportional to 826,404.40, 1,237,241.40 and 508,722.40

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Solution

The fourth proportional to 826,404.40, 1,237,241.40 and 508,722.40 is: 761,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,404.40 : 1,237,241.40 = 508,722.40 : x
  2. Step 2: Convert to fraction form
    826,404.40/1,237,241.40 = 508,722.40/x
  3. Step 3: Cross multiply
    826,404.40x = 1,237,241.40 × 508,722.40
  4. Step 4: Simplify right side
    826,404.40x = 629,412,414,387.36
  5. Step 5: Solve for x
    x = 629,412,414,387.36/826,404.40
  6. Step 6: Final answer
    x = 761,627.62

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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.