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Finding the Fourth Proportional to 349,683.40, 482,304.78 and 240,822.30

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Solution

The fourth proportional to 349,683.40, 482,304.78 and 240,822.30 is: 332,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,683.40 : 482,304.78 = 240,822.30 : x
  2. Step 2: Convert to fraction form
    349,683.40/482,304.78 = 240,822.30/x
  3. Step 3: Cross multiply
    349,683.40x = 482,304.78 × 240,822.30
  4. Step 4: Simplify right side
    349,683.40x = 116,149,746,420.59
  5. Step 5: Solve for x
    x = 116,149,746,420.59/349,683.40
  6. Step 6: Final answer
    x = 332,156.88

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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.