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Finding the Fourth Proportional to 560,760.80, 773,746.38 and 319,029.26

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Solution

The fourth proportional to 560,760.80, 773,746.38 and 319,029.26 is: 440,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,760.80 : 773,746.38 = 319,029.26 : x
  2. Step 2: Convert to fraction form
    560,760.80/773,746.38 = 319,029.26/x
  3. Step 3: Cross multiply
    560,760.80x = 773,746.38 × 319,029.26
  4. Step 4: Simplify right side
    560,760.80x = 246,847,736,973.45
  5. Step 5: Solve for x
    x = 246,847,736,973.45/560,760.80
  6. Step 6: Final answer
    x = 440,201.48

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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.