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Finding the Fourth Proportional to 671,065.82, 926,109.15 and 384,633.62

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Solution

The fourth proportional to 671,065.82, 926,109.15 and 384,633.62 is: 530,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,065.82 : 926,109.15 = 384,633.62 : x
  2. Step 2: Convert to fraction form
    671,065.82/926,109.15 = 384,633.62/x
  3. Step 3: Cross multiply
    671,065.82x = 926,109.15 × 384,633.62
  4. Step 4: Simplify right side
    671,065.82x = 356,212,714,879.62
  5. Step 5: Solve for x
    x = 356,212,714,879.62/671,065.82
  6. Step 6: Final answer
    x = 530,816.36

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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.