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Finding the Fourth Proportional to 469,421.32, 647,801.57 and 254,561.32

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Solution

The fourth proportional to 469,421.32, 647,801.57 and 254,561.32 is: 351,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,421.32 : 647,801.57 = 254,561.32 : x
  2. Step 2: Convert to fraction form
    469,421.32/647,801.57 = 254,561.32/x
  3. Step 3: Cross multiply
    469,421.32x = 647,801.57 × 254,561.32
  4. Step 4: Simplify right side
    469,421.32x = 164,905,222,757.27
  5. Step 5: Solve for x
    x = 164,905,222,757.27/469,421.32
  6. Step 6: Final answer
    x = 351,294.70

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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.