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Finding the Fourth Proportional to 695,031.90, 959,171.67 and 426,846.30

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Solution

The fourth proportional to 695,031.90, 959,171.67 and 426,846.30 is: 589,064.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,031.90 : 959,171.67 = 426,846.30 : x
  2. Step 2: Convert to fraction form
    695,031.90/959,171.67 = 426,846.30/x
  3. Step 3: Cross multiply
    695,031.90x = 959,171.67 × 426,846.30
  4. Step 4: Simplify right side
    695,031.90x = 409,418,878,404.32
  5. Step 5: Solve for x
    x = 409,418,878,404.32/695,031.90
  6. Step 6: Final answer
    x = 589,064.87

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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.