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Finding the Fourth Proportional to 670,999.92, 926,033.28 and 384,546.72

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Solution

The fourth proportional to 670,999.92, 926,033.28 and 384,546.72 is: 530,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,999.92 : 926,033.28 = 384,546.72 : x
  2. Step 2: Convert to fraction form
    670,999.92/926,033.28 = 384,546.72/x
  3. Step 3: Cross multiply
    670,999.92x = 926,033.28 × 384,546.72
  4. Step 4: Simplify right side
    670,999.92x = 356,103,060,434.84
  5. Step 5: Solve for x
    x = 356,103,060,434.84/670,999.92
  6. Step 6: Final answer
    x = 530,705.07

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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.