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Finding the Fourth Proportional to 417,515.16, 625,485.38 and 323,561.64

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Solution

The fourth proportional to 417,515.16, 625,485.38 and 323,561.64 is: 484,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,515.16 : 625,485.38 = 323,561.64 : x
  2. Step 2: Convert to fraction form
    417,515.16/625,485.38 = 323,561.64/x
  3. Step 3: Cross multiply
    417,515.16x = 625,485.38 × 323,561.64
  4. Step 4: Simplify right side
    417,515.16x = 202,383,075,348.82
  5. Step 5: Solve for x
    x = 202,383,075,348.82/417,515.16
  6. Step 6: Final answer
    x = 484,732.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.