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Finding the Fourth Proportional to 671,346.60, 926,792.19 and 442,051.80

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Solution

The fourth proportional to 671,346.60, 926,792.19 and 442,051.80 is: 610,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,346.60 : 926,792.19 = 442,051.80 : x
  2. Step 2: Convert to fraction form
    671,346.60/926,792.19 = 442,051.80/x
  3. Step 3: Cross multiply
    671,346.60x = 926,792.19 × 442,051.80
  4. Step 4: Simplify right side
    671,346.60x = 409,690,155,815.44
  5. Step 5: Solve for x
    x = 409,690,155,815.44/671,346.60
  6. Step 6: Final answer
    x = 610,251.33

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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.