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Finding the Fourth Proportional to 442,582.48, 663,874.12 and 189,698.86

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Solution

The fourth proportional to 442,582.48, 663,874.12 and 189,698.86 is: 284,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,582.48 : 663,874.12 = 189,698.86 : x
  2. Step 2: Convert to fraction form
    442,582.48/663,874.12 = 189,698.86/x
  3. Step 3: Cross multiply
    442,582.48x = 663,874.12 × 189,698.86
  4. Step 4: Simplify right side
    442,582.48x = 125,936,163,747.50
  5. Step 5: Solve for x
    x = 125,936,163,747.50/442,582.48
  6. Step 6: Final answer
    x = 284,548.46

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1.5x scale

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.