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Finding the Fourth Proportional to 445,713.50, 615,074.72 and 252,095.60

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Solution

The fourth proportional to 445,713.50, 615,074.72 and 252,095.60 is: 347,886.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,713.50 : 615,074.72 = 252,095.60 : x
  2. Step 2: Convert to fraction form
    445,713.50/615,074.72 = 252,095.60/x
  3. Step 3: Cross multiply
    445,713.50x = 615,074.72 × 252,095.60
  4. Step 4: Simplify right side
    445,713.50x = 155,057,630,583.23
  5. Step 5: Solve for x
    x = 155,057,630,583.23/445,713.50
  6. Step 6: Final answer
    x = 347,886.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.