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Finding the Fourth Proportional to 427,686.12, 590,250.78 and 246,404.88

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Solution

The fourth proportional to 427,686.12, 590,250.78 and 246,404.88 is: 340,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,686.12 : 590,250.78 = 246,404.88 : x
  2. Step 2: Convert to fraction form
    427,686.12/590,250.78 = 246,404.88/x
  3. Step 3: Cross multiply
    427,686.12x = 590,250.78 × 246,404.88
  4. Step 4: Simplify right side
    427,686.12x = 145,440,672,615.81
  5. Step 5: Solve for x
    x = 145,440,672,615.81/427,686.12
  6. Step 6: Final answer
    x = 340,064.05

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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.