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Finding the Fourth Proportional to 583,293.60, 804,944.99 and 315,021.60

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Solution

The fourth proportional to 583,293.60, 804,944.99 and 315,021.60 is: 434,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,293.60 : 804,944.99 = 315,021.60 : x
  2. Step 2: Convert to fraction form
    583,293.60/804,944.99 = 315,021.60/x
  3. Step 3: Cross multiply
    583,293.60x = 804,944.99 × 315,021.60
  4. Step 4: Simplify right side
    583,293.60x = 253,575,057,086.68
  5. Step 5: Solve for x
    x = 253,575,057,086.68/583,293.60
  6. Step 6: Final answer
    x = 434,729.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.