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Finding the Fourth Proportional to 671,115.08, 926,160.54 and 384,689.36

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Solution

The fourth proportional to 671,115.08, 926,160.54 and 384,689.36 is: 530,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,115.08 : 926,160.54 = 384,689.36 : x
  2. Step 2: Convert to fraction form
    671,115.08/926,160.54 = 384,689.36/x
  3. Step 3: Cross multiply
    671,115.08x = 926,160.54 × 384,689.36
  4. Step 4: Simplify right side
    671,115.08x = 356,284,105,389.85
  5. Step 5: Solve for x
    x = 356,284,105,389.85/671,115.08
  6. Step 6: Final answer
    x = 530,883.77

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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.