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Finding the Fourth Proportional to 617,493.46, 924,745.27 and 427,421.26

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Solution

The fourth proportional to 617,493.46, 924,745.27 and 427,421.26 is: 640,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,493.46 : 924,745.27 = 427,421.26 : x
  2. Step 2: Convert to fraction form
    617,493.46/924,745.27 = 427,421.26/x
  3. Step 3: Cross multiply
    617,493.46x = 924,745.27 × 427,421.26
  4. Step 4: Simplify right side
    617,493.46x = 395,255,788,482.44
  5. Step 5: Solve for x
    x = 395,255,788,482.44/617,493.46
  6. Step 6: Final answer
    x = 640,097.13

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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.