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Finding the Fourth Proportional to 470,060.40, 705,212.10 and 203,759.40

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Solution

The fourth proportional to 470,060.40, 705,212.10 and 203,759.40 is: 305,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,060.40 : 705,212.10 = 203,759.40 : x
  2. Step 2: Convert to fraction form
    470,060.40/705,212.10 = 203,759.40/x
  3. Step 3: Cross multiply
    470,060.40x = 705,212.10 × 203,759.40
  4. Step 4: Simplify right side
    470,060.40x = 143,693,594,368.74
  5. Step 5: Solve for x
    x = 143,693,594,368.74/470,060.40
  6. Step 6: Final answer
    x = 305,691.77

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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.