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Finding the Fourth Proportional to 594,667.96, 821,322.90 and 391,626.50

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Solution

The fourth proportional to 594,667.96, 821,322.90 and 391,626.50 is: 540,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,667.96 : 821,322.90 = 391,626.50 : x
  2. Step 2: Convert to fraction form
    594,667.96/821,322.90 = 391,626.50/x
  3. Step 3: Cross multiply
    594,667.96x = 821,322.90 × 391,626.50
  4. Step 4: Simplify right side
    594,667.96x = 321,651,812,696.85
  5. Step 5: Solve for x
    x = 321,651,812,696.85/594,667.96
  6. Step 6: Final answer
    x = 540,893.13

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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.