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Finding the Fourth Proportional to 295,657.20, 443,485.80 and 272,847.60

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Solution

The fourth proportional to 295,657.20, 443,485.80 and 272,847.60 is: 409,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,657.20 : 443,485.80 = 272,847.60 : x
  2. Step 2: Convert to fraction form
    295,657.20/443,485.80 = 272,847.60/x
  3. Step 3: Cross multiply
    295,657.20x = 443,485.80 × 272,847.60
  4. Step 4: Simplify right side
    295,657.20x = 121,004,036,164.08
  5. Step 5: Solve for x
    x = 121,004,036,164.08/295,657.20
  6. Step 6: Final answer
    x = 409,271.40

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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.