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Finding the Fourth Proportional to 711,316.74, 981,557.74 and 401,202.24

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Solution

The fourth proportional to 711,316.74, 981,557.74 and 401,202.24 is: 553,625.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,316.74 : 981,557.74 = 401,202.24 : x
  2. Step 2: Convert to fraction form
    711,316.74/981,557.74 = 401,202.24/x
  3. Step 3: Cross multiply
    711,316.74x = 981,557.74 × 401,202.24
  4. Step 4: Simplify right side
    711,316.74x = 393,803,163,977.34
  5. Step 5: Solve for x
    x = 393,803,163,977.34/711,316.74
  6. Step 6: Final answer
    x = 553,625.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.