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Finding the Fourth Proportional to 432,388.41, 596,524.41 and 288,921.21

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Solution

The fourth proportional to 432,388.41, 596,524.41 and 288,921.21 is: 398,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,388.41 : 596,524.41 = 288,921.21 : x
  2. Step 2: Convert to fraction form
    432,388.41/596,524.41 = 288,921.21/x
  3. Step 3: Cross multiply
    432,388.41x = 596,524.41 × 288,921.21
  4. Step 4: Simplify right side
    432,388.41x = 172,348,554,331.74
  5. Step 5: Solve for x
    x = 172,348,554,331.74/432,388.41
  6. Step 6: Final answer
    x = 398,596.61

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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.