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Finding the Fourth Proportional to 365,784.60, 549,989.10 and 308,047.80

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Solution

The fourth proportional to 365,784.60, 549,989.10 and 308,047.80 is: 463,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,784.60 : 549,989.10 = 308,047.80 : x
  2. Step 2: Convert to fraction form
    365,784.60/549,989.10 = 308,047.80/x
  3. Step 3: Cross multiply
    365,784.60x = 549,989.10 × 308,047.80
  4. Step 4: Simplify right side
    365,784.60x = 169,422,932,278.98
  5. Step 5: Solve for x
    x = 169,422,932,278.98/365,784.60
  6. Step 6: Final answer
    x = 463,176.78

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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.