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Finding the Fourth Proportional to 315,599.88, 435,239.34 and 246,698.46

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Solution

The fourth proportional to 315,599.88, 435,239.34 and 246,698.46 is: 340,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,599.88 : 435,239.34 = 246,698.46 : x
  2. Step 2: Convert to fraction form
    315,599.88/435,239.34 = 246,698.46/x
  3. Step 3: Cross multiply
    315,599.88x = 435,239.34 × 246,698.46
  4. Step 4: Simplify right side
    315,599.88x = 107,372,874,909.42
  5. Step 5: Solve for x
    x = 107,372,874,909.42/315,599.88
  6. Step 6: Final answer
    x = 340,218.36

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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.