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Finding the Fourth Proportional to 347,612.43, 479,457.35 and 319,024.24

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Solution

The fourth proportional to 347,612.43, 479,457.35 and 319,024.24 is: 440,026.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,612.43 : 479,457.35 = 319,024.24 : x
  2. Step 2: Convert to fraction form
    347,612.43/479,457.35 = 319,024.24/x
  3. Step 3: Cross multiply
    347,612.43x = 479,457.35 × 319,024.24
  4. Step 4: Simplify right side
    347,612.43x = 152,958,515,101.04
  5. Step 5: Solve for x
    x = 152,958,515,101.04/347,612.43
  6. Step 6: Final answer
    x = 440,026.02

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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.