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Finding the Fourth Proportional to 488,023.32, 673,435.41 and 297,015.60

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Solution

The fourth proportional to 488,023.32, 673,435.41 and 297,015.60 is: 409,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,023.32 : 673,435.41 = 297,015.60 : x
  2. Step 2: Convert to fraction form
    488,023.32/673,435.41 = 297,015.60/x
  3. Step 3: Cross multiply
    488,023.32x = 673,435.41 × 297,015.60
  4. Step 4: Simplify right side
    488,023.32x = 200,020,822,362.40
  5. Step 5: Solve for x
    x = 200,020,822,362.40/488,023.32
  6. Step 6: Final answer
    x = 409,859.15

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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.