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Finding the Fourth Proportional to 325,520.10, 488,280.15 and 214,712.10

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Solution

The fourth proportional to 325,520.10, 488,280.15 and 214,712.10 is: 322,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,520.10 : 488,280.15 = 214,712.10 : x
  2. Step 2: Convert to fraction form
    325,520.10/488,280.15 = 214,712.10/x
  3. Step 3: Cross multiply
    325,520.10x = 488,280.15 × 214,712.10
  4. Step 4: Simplify right side
    325,520.10x = 104,839,656,394.82
  5. Step 5: Solve for x
    x = 104,839,656,394.82/325,520.10
  6. Step 6: Final answer
    x = 322,068.15

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1.5x scale

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.