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Finding the Fourth Proportional to 670,583.45, 925,429.46 and 384,158.89

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Solution

The fourth proportional to 670,583.45, 925,429.46 and 384,158.89 is: 530,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,583.45 : 925,429.46 = 384,158.89 : x
  2. Step 2: Convert to fraction form
    670,583.45/925,429.46 = 384,158.89/x
  3. Step 3: Cross multiply
    670,583.45x = 925,429.46 × 384,158.89
  4. Step 4: Simplify right side
    670,583.45x = 355,511,956,757.54
  5. Step 5: Solve for x
    x = 355,511,956,757.54/670,583.45
  6. Step 6: Final answer
    x = 530,153.19

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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.