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Finding the Fourth Proportional to 463,396.38, 639,157.23 and 425,278.94

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Solution

The fourth proportional to 463,396.38, 639,157.23 and 425,278.94 is: 586,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,396.38 : 639,157.23 = 425,278.94 : x
  2. Step 2: Convert to fraction form
    463,396.38/639,157.23 = 425,278.94/x
  3. Step 3: Cross multiply
    463,396.38x = 639,157.23 × 425,278.94
  4. Step 4: Simplify right side
    463,396.38x = 271,820,106,071.95
  5. Step 5: Solve for x
    x = 271,820,106,071.95/463,396.38
  6. Step 6: Final answer
    x = 586,582.28

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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.