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Finding the Fourth Proportional to 617,912.90, 926,869.35 and 497,644.10

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Solution

The fourth proportional to 617,912.90, 926,869.35 and 497,644.10 is: 746,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,912.90 : 926,869.35 = 497,644.10 : x
  2. Step 2: Convert to fraction form
    617,912.90/926,869.35 = 497,644.10/x
  3. Step 3: Cross multiply
    617,912.90x = 926,869.35 × 497,644.10
  4. Step 4: Simplify right side
    617,912.90x = 461,251,063,498.34
  5. Step 5: Solve for x
    x = 461,251,063,498.34/617,912.90
  6. Step 6: Final answer
    x = 746,466.15

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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.