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Finding the Fourth Proportional to 671,109.32, 926,170.79 and 384,647.83

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Solution

The fourth proportional to 671,109.32, 926,170.79 and 384,647.83 is: 530,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,109.32 : 926,170.79 = 384,647.83 : x
  2. Step 2: Convert to fraction form
    671,109.32/926,170.79 = 384,647.83/x
  3. Step 3: Cross multiply
    671,109.32x = 926,170.79 × 384,647.83
  4. Step 4: Simplify right side
    671,109.32x = 356,249,580,344.22
  5. Step 5: Solve for x
    x = 356,249,580,344.22/671,109.32
  6. Step 6: Final answer
    x = 530,836.88

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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.