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Finding the Fourth Proportional to 432,783.30, 648,656.55 and 222,312.90

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Solution

The fourth proportional to 432,783.30, 648,656.55 and 222,312.90 is: 333,203.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,783.30 : 648,656.55 = 222,312.90 : x
  2. Step 2: Convert to fraction form
    432,783.30/648,656.55 = 222,312.90/x
  3. Step 3: Cross multiply
    432,783.30x = 648,656.55 × 222,312.90
  4. Step 4: Simplify right side
    432,783.30x = 144,204,718,734.50
  5. Step 5: Solve for x
    x = 144,204,718,734.50/432,783.30
  6. Step 6: Final answer
    x = 333,203.06

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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.