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Finding the Fourth Proportional to 617,486.09, 926,522.55 and 218,314.85

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Solution

The fourth proportional to 617,486.09, 926,522.55 and 218,314.85 is: 327,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,486.09 : 926,522.55 = 218,314.85 : x
  2. Step 2: Convert to fraction form
    617,486.09/926,522.55 = 218,314.85/x
  3. Step 3: Cross multiply
    617,486.09x = 926,522.55 × 218,314.85
  4. Step 4: Simplify right side
    617,486.09x = 202,273,626,892.26
  5. Step 5: Solve for x
    x = 202,273,626,892.26/617,486.09
  6. Step 6: Final answer
    x = 327,576.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.