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Finding the Fourth Proportional to 619,723.35, 929,530.35 and 170,404.20

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Solution

The fourth proportional to 619,723.35, 929,530.35 and 170,404.20 is: 255,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,723.35 : 929,530.35 = 170,404.20 : x
  2. Step 2: Convert to fraction form
    619,723.35/929,530.35 = 170,404.20/x
  3. Step 3: Cross multiply
    619,723.35x = 929,530.35 × 170,404.20
  4. Step 4: Simplify right side
    619,723.35x = 158,395,875,667.47
  5. Step 5: Solve for x
    x = 158,395,875,667.47/619,723.35
  6. Step 6: Final answer
    x = 255,591.27

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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.