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Finding the Fourth Proportional to 488,363.90, 732,448.65 and 235,643.90

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Solution

The fourth proportional to 488,363.90, 732,448.65 and 235,643.90 is: 353,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,363.90 : 732,448.65 = 235,643.90 : x
  2. Step 2: Convert to fraction form
    488,363.90/732,448.65 = 235,643.90/x
  3. Step 3: Cross multiply
    488,363.90x = 732,448.65 × 235,643.90
  4. Step 4: Simplify right side
    488,363.90x = 172,597,056,435.74
  5. Step 5: Solve for x
    x = 172,597,056,435.74/488,363.90
  6. Step 6: Final answer
    x = 353,418.95

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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.