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Finding the Fourth Proportional to 349,638.35, 482,722.71 and 239,441.45

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Solution

The fourth proportional to 349,638.35, 482,722.71 and 239,441.45 is: 330,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,638.35 : 482,722.71 = 239,441.45 : x
  2. Step 2: Convert to fraction form
    349,638.35/482,722.71 = 239,441.45/x
  3. Step 3: Cross multiply
    349,638.35x = 482,722.71 × 239,441.45
  4. Step 4: Simplify right side
    349,638.35x = 115,583,823,216.72
  5. Step 5: Solve for x
    x = 115,583,823,216.72/349,638.35
  6. Step 6: Final answer
    x = 330,581.08

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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.