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Finding the Fourth Proportional to 702,520.32, 969,621.12 and 476,238.72

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Solution

The fourth proportional to 702,520.32, 969,621.12 and 476,238.72 is: 657,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,520.32 : 969,621.12 = 476,238.72 : x
  2. Step 2: Convert to fraction form
    702,520.32/969,621.12 = 476,238.72/x
  3. Step 3: Cross multiply
    702,520.32x = 969,621.12 × 476,238.72
  4. Step 4: Simplify right side
    702,520.32x = 461,771,121,073.77
  5. Step 5: Solve for x
    x = 461,771,121,073.77/702,520.32
  6. Step 6: Final answer
    x = 657,306.43

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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.