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Finding the Fourth Proportional to 416,770.96, 575,141.16 and 225,779.92

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Solution

The fourth proportional to 416,770.96, 575,141.16 and 225,779.92 is: 311,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,770.96 : 575,141.16 = 225,779.92 : x
  2. Step 2: Convert to fraction form
    416,770.96/575,141.16 = 225,779.92/x
  3. Step 3: Cross multiply
    416,770.96x = 575,141.16 × 225,779.92
  4. Step 4: Simplify right side
    416,770.96x = 129,855,325,093.51
  5. Step 5: Solve for x
    x = 129,855,325,093.51/416,770.96
  6. Step 6: Final answer
    x = 311,574.79

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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.