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Finding the Fourth Proportional to 364,627.20, 546,940.80 and 231,657.60

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Solution

The fourth proportional to 364,627.20, 546,940.80 and 231,657.60 is: 347,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,627.20 : 546,940.80 = 231,657.60 : x
  2. Step 2: Convert to fraction form
    364,627.20/546,940.80 = 231,657.60/x
  3. Step 3: Cross multiply
    364,627.20x = 546,940.80 × 231,657.60
  4. Step 4: Simplify right side
    364,627.20x = 126,702,993,070.08
  5. Step 5: Solve for x
    x = 126,702,993,070.08/364,627.20
  6. Step 6: Final answer
    x = 347,486.40

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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.