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Finding the Fourth Proportional to 617,494.46, 924,746.77 and 427,422.26

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Solution

The fourth proportional to 617,494.46, 924,746.77 and 427,422.26 is: 640,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,494.46 : 924,746.77 = 427,422.26 : x
  2. Step 2: Convert to fraction form
    617,494.46/924,746.77 = 427,422.26/x
  3. Step 3: Cross multiply
    617,494.46x = 924,746.77 × 427,422.26
  4. Step 4: Simplify right side
    617,494.46x = 395,257,354,361.10
  5. Step 5: Solve for x
    x = 395,257,354,361.10/617,494.46
  6. Step 6: Final answer
    x = 640,098.62

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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.