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Finding the Fourth Proportional to 474,345.40, 711,921.30 and 194,063.80

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Solution

The fourth proportional to 474,345.40, 711,921.30 and 194,063.80 is: 291,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,345.40 : 711,921.30 = 194,063.80 : x
  2. Step 2: Convert to fraction form
    474,345.40/711,921.30 = 194,063.80/x
  3. Step 3: Cross multiply
    474,345.40x = 711,921.30 × 194,063.80
  4. Step 4: Simplify right side
    474,345.40x = 138,158,152,778.94
  5. Step 5: Solve for x
    x = 138,158,152,778.94/474,345.40
  6. Step 6: Final answer
    x = 291,260.66

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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.