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Finding the Fourth Proportional to 325,634.10, 488,159.55 and 213,368.10

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Solution

The fourth proportional to 325,634.10, 488,159.55 and 213,368.10 is: 319,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,634.10 : 488,159.55 = 213,368.10 : x
  2. Step 2: Convert to fraction form
    325,634.10/488,159.55 = 213,368.10/x
  3. Step 3: Cross multiply
    325,634.10x = 488,159.55 × 213,368.10
  4. Step 4: Simplify right side
    325,634.10x = 104,157,675,680.36
  5. Step 5: Solve for x
    x = 104,157,675,680.36/325,634.10
  6. Step 6: Final answer
    x = 319,861.08

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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.