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Finding the Fourth Proportional to 474,805.80, 711,287.10 and 264,066.60

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Solution

The fourth proportional to 474,805.80, 711,287.10 and 264,066.60 is: 395,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,805.80 : 711,287.10 = 264,066.60 : x
  2. Step 2: Convert to fraction form
    474,805.80/711,287.10 = 264,066.60/x
  3. Step 3: Cross multiply
    474,805.80x = 711,287.10 × 264,066.60
  4. Step 4: Simplify right side
    474,805.80x = 187,827,166,120.86
  5. Step 5: Solve for x
    x = 187,827,166,120.86/474,805.80
  6. Step 6: Final answer
    x = 395,587.35

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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.