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Finding the Fourth Proportional to 646,663.64, 892,304.40 and 367,251.32

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Solution

The fourth proportional to 646,663.64, 892,304.40 and 367,251.32 is: 506,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,663.64 : 892,304.40 = 367,251.32 : x
  2. Step 2: Convert to fraction form
    646,663.64/892,304.40 = 367,251.32/x
  3. Step 3: Cross multiply
    646,663.64x = 892,304.40 × 367,251.32
  4. Step 4: Simplify right side
    646,663.64x = 327,699,968,741.81
  5. Step 5: Solve for x
    x = 327,699,968,741.81/646,663.64
  6. Step 6: Final answer
    x = 506,754.90

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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.