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Finding the Fourth Proportional to 432,963.90, 648,461.70 and 222,355.80

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Solution

The fourth proportional to 432,963.90, 648,461.70 and 222,355.80 is: 333,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,963.90 : 648,461.70 = 222,355.80 : x
  2. Step 2: Convert to fraction form
    432,963.90/648,461.70 = 222,355.80/x
  3. Step 3: Cross multiply
    432,963.90x = 648,461.70 × 222,355.80
  4. Step 4: Simplify right side
    432,963.90x = 144,189,220,072.86
  5. Step 5: Solve for x
    x = 144,189,220,072.86/432,963.90
  6. Step 6: Final answer
    x = 333,028.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.