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Finding the Fourth Proportional to 325,567.60, 488,351.40 and 207,323.80

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Solution

The fourth proportional to 325,567.60, 488,351.40 and 207,323.80 is: 310,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,567.60 : 488,351.40 = 207,323.80 : x
  2. Step 2: Convert to fraction form
    325,567.60/488,351.40 = 207,323.80/x
  3. Step 3: Cross multiply
    325,567.60x = 488,351.40 × 207,323.80
  4. Step 4: Simplify right side
    325,567.60x = 101,246,867,983.32
  5. Step 5: Solve for x
    x = 101,246,867,983.32/325,567.60
  6. Step 6: Final answer
    x = 310,985.70

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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.