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Finding the Fourth Proportional to 325,637.10, 488,455.65 and 219,348.90

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Solution

The fourth proportional to 325,637.10, 488,455.65 and 219,348.90 is: 329,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,637.10 : 488,455.65 = 219,348.90 : x
  2. Step 2: Convert to fraction form
    325,637.10/488,455.65 = 219,348.90/x
  3. Step 3: Cross multiply
    325,637.10x = 488,455.65 × 219,348.90
  4. Step 4: Simplify right side
    325,637.10x = 107,142,209,526.29
  5. Step 5: Solve for x
    x = 107,142,209,526.29/325,637.10
  6. Step 6: Final answer
    x = 329,023.35

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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.