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Finding the Fourth Proportional to 590,944.48, 815,470 and 349,249.60

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Solution

The fourth proportional to 590,944.48, 815,470 and 349,249.60 is: 481,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,944.48 : 815,470 = 349,249.60 : x
  2. Step 2: Convert to fraction form
    590,944.48/815,470 = 349,249.60/x
  3. Step 3: Cross multiply
    590,944.48x = 815,470 × 349,249.60
  4. Step 4: Simplify right side
    590,944.48x = 284,802,571,312
  5. Step 5: Solve for x
    x = 284,802,571,312/590,944.48
  6. Step 6: Final answer
    x = 481,944.72

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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.