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Finding the Fourth Proportional to 416,431.42, 574,675.55 and 225,444.81

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Solution

The fourth proportional to 416,431.42, 574,675.55 and 225,444.81 is: 311,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,431.42 : 574,675.55 = 225,444.81 : x
  2. Step 2: Convert to fraction form
    416,431.42/574,675.55 = 225,444.81/x
  3. Step 3: Cross multiply
    416,431.42x = 574,675.55 × 225,444.81
  4. Step 4: Simplify right side
    416,431.42x = 129,557,620,181.40
  5. Step 5: Solve for x
    x = 129,557,620,181.40/416,431.42
  6. Step 6: Final answer
    x = 311,113.94

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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.