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Finding the Fourth Proportional to 367,485.60, 549,999.60 and 256,893.60

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Solution

The fourth proportional to 367,485.60, 549,999.60 and 256,893.60 is: 384,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,485.60 : 549,999.60 = 256,893.60 : x
  2. Step 2: Convert to fraction form
    367,485.60/549,999.60 = 256,893.60/x
  3. Step 3: Cross multiply
    367,485.60x = 549,999.60 × 256,893.60
  4. Step 4: Simplify right side
    367,485.60x = 141,291,377,242.56
  5. Step 5: Solve for x
    x = 141,291,377,242.56/367,485.60
  6. Step 6: Final answer
    x = 384,481.40

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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.