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Finding the Fourth Proportional to 325,511.10, 488,266.65 and 214,703.10

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Solution

The fourth proportional to 325,511.10, 488,266.65 and 214,703.10 is: 322,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,511.10 : 488,266.65 = 214,703.10 : x
  2. Step 2: Convert to fraction form
    325,511.10/488,266.65 = 214,703.10/x
  3. Step 3: Cross multiply
    325,511.10x = 488,266.65 × 214,703.10
  4. Step 4: Simplify right side
    325,511.10x = 104,832,363,381.62
  5. Step 5: Solve for x
    x = 104,832,363,381.62/325,511.10
  6. Step 6: Final answer
    x = 322,054.65

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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.