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Finding the Fourth Proportional to 671,065.08, 926,091.60 and 384,639.15

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Solution

The fourth proportional to 671,065.08, 926,091.60 and 384,639.15 is: 530,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,065.08 : 926,091.60 = 384,639.15 : x
  2. Step 2: Convert to fraction form
    671,065.08/926,091.60 = 384,639.15/x
  3. Step 3: Cross multiply
    671,065.08x = 926,091.60 × 384,639.15
  4. Step 4: Simplify right side
    671,065.08x = 356,211,085,846.14
  5. Step 5: Solve for x
    x = 356,211,085,846.14/671,065.08
  6. Step 6: Final answer
    x = 530,814.52

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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.