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Finding the Fourth Proportional to 325,812.60, 488,718.90 and 201,223.80

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Solution

The fourth proportional to 325,812.60, 488,718.90 and 201,223.80 is: 301,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,812.60 : 488,718.90 = 201,223.80 : x
  2. Step 2: Convert to fraction form
    325,812.60/488,718.90 = 201,223.80/x
  3. Step 3: Cross multiply
    325,812.60x = 488,718.90 × 201,223.80
  4. Step 4: Simplify right side
    325,812.60x = 98,341,874,189.82
  5. Step 5: Solve for x
    x = 98,341,874,189.82/325,812.60
  6. Step 6: Final answer
    x = 301,835.70

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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.