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Finding the Fourth Proportional to 395,630.90, 592,732.84 and 243,563.32

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Solution

The fourth proportional to 395,630.90, 592,732.84 and 243,563.32 is: 364,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,630.90 : 592,732.84 = 243,563.32 : x
  2. Step 2: Convert to fraction form
    395,630.90/592,732.84 = 243,563.32/x
  3. Step 3: Cross multiply
    395,630.90x = 592,732.84 × 243,563.32
  4. Step 4: Simplify right side
    395,630.90x = 144,367,980,169.72
  5. Step 5: Solve for x
    x = 144,367,980,169.72/395,630.90
  6. Step 6: Final answer
    x = 364,905.72

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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.