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Finding the Fourth Proportional to 453,453.09, 625,505.32 and 283,391.97

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Solution

The fourth proportional to 453,453.09, 625,505.32 and 283,391.97 is: 390,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,453.09 : 625,505.32 = 283,391.97 : x
  2. Step 2: Convert to fraction form
    453,453.09/625,505.32 = 283,391.97/x
  3. Step 3: Cross multiply
    453,453.09x = 625,505.32 × 283,391.97
  4. Step 4: Simplify right side
    453,453.09x = 177,263,184,880.28
  5. Step 5: Solve for x
    x = 177,263,184,880.28/453,453.09
  6. Step 6: Final answer
    x = 390,918.46

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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.