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Finding the Fourth Proportional to 463,431.42, 639,205.56 and 425,314.08

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Solution

The fourth proportional to 463,431.42, 639,205.56 and 425,314.08 is: 586,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,431.42 : 639,205.56 = 425,314.08 : x
  2. Step 2: Convert to fraction form
    463,431.42/639,205.56 = 425,314.08/x
  3. Step 3: Cross multiply
    463,431.42x = 639,205.56 × 425,314.08
  4. Step 4: Simplify right side
    463,431.42x = 271,863,124,682.29
  5. Step 5: Solve for x
    x = 271,863,124,682.29/463,431.42
  6. Step 6: Final answer
    x = 586,630.76

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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.