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Finding the Fourth Proportional to 562,022.62, 775,604.54 and 320,327.69

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Solution

The fourth proportional to 562,022.62, 775,604.54 and 320,327.69 is: 442,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,022.62 : 775,604.54 = 320,327.69 : x
  2. Step 2: Convert to fraction form
    562,022.62/775,604.54 = 320,327.69/x
  3. Step 3: Cross multiply
    562,022.62x = 775,604.54 × 320,327.69
  4. Step 4: Simplify right side
    562,022.62x = 248,447,607,574.51
  5. Step 5: Solve for x
    x = 248,447,607,574.51/562,022.62
  6. Step 6: Final answer
    x = 442,059.80

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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.