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Finding the Fourth Proportional to 562,040.24, 775,635.72 and 320,359.28

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Solution

The fourth proportional to 562,040.24, 775,635.72 and 320,359.28 is: 442,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,040.24 : 775,635.72 = 320,359.28 : x
  2. Step 2: Convert to fraction form
    562,040.24/775,635.72 = 320,359.28/x
  3. Step 3: Cross multiply
    562,040.24x = 775,635.72 × 320,359.28
  4. Step 4: Simplify right side
    562,040.24x = 248,482,100,801.48
  5. Step 5: Solve for x
    x = 248,482,100,801.48/562,040.24
  6. Step 6: Final answer
    x = 442,107.31

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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.