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Finding the Fourth Proportional to 416,430.60, 574,673.51 and 225,443.94

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Solution

The fourth proportional to 416,430.60, 574,673.51 and 225,443.94 is: 311,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,430.60 : 574,673.51 = 225,443.94 : x
  2. Step 2: Convert to fraction form
    416,430.60/574,673.51 = 225,443.94/x
  3. Step 3: Cross multiply
    416,430.60x = 574,673.51 × 225,443.94
  4. Step 4: Simplify right side
    416,430.60x = 129,556,659,180.81
  5. Step 5: Solve for x
    x = 129,556,659,180.81/416,430.60
  6. Step 6: Final answer
    x = 311,112.25

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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.