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Finding the Fourth Proportional to 619,614.36, 929,347.74 and 170,380.80

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Solution

The fourth proportional to 619,614.36, 929,347.74 and 170,380.80 is: 255,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,614.36 : 929,347.74 = 170,380.80 : x
  2. Step 2: Convert to fraction form
    619,614.36/929,347.74 = 170,380.80/x
  3. Step 3: Cross multiply
    619,614.36x = 929,347.74 × 170,380.80
  4. Step 4: Simplify right side
    619,614.36x = 158,343,011,419.39
  5. Step 5: Solve for x
    x = 158,343,011,419.39/619,614.36
  6. Step 6: Final answer
    x = 255,550.91

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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.