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Finding the Fourth Proportional to 475,034.40, 711,946.80 and 194,234.40

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Solution

The fourth proportional to 475,034.40, 711,946.80 and 194,234.40 is: 291,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,034.40 : 711,946.80 = 194,234.40 : x
  2. Step 2: Convert to fraction form
    475,034.40/711,946.80 = 194,234.40/x
  3. Step 3: Cross multiply
    475,034.40x = 711,946.80 × 194,234.40
  4. Step 4: Simplify right side
    475,034.40x = 138,284,559,529.92
  5. Step 5: Solve for x
    x = 138,284,559,529.92/475,034.40
  6. Step 6: Final answer
    x = 291,104.31

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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.