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Finding the Fourth Proportional to 562,199.12, 775,876.88 and 320,487.44

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Solution

The fourth proportional to 562,199.12, 775,876.88 and 320,487.44 is: 442,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,199.12 : 775,876.88 = 320,487.44 : x
  2. Step 2: Convert to fraction form
    562,199.12/775,876.88 = 320,487.44/x
  3. Step 3: Cross multiply
    562,199.12x = 775,876.88 × 320,487.44
  4. Step 4: Simplify right side
    562,199.12x = 248,658,795,026.39
  5. Step 5: Solve for x
    x = 248,658,795,026.39/562,199.12
  6. Step 6: Final answer
    x = 442,296.66

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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.