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Finding the Fourth Proportional to 661,942.81, 910,614.58 and 579,901.62

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Solution

The fourth proportional to 661,942.81, 910,614.58 and 579,901.62 is: 797,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,942.81 : 910,614.58 = 579,901.62 : x
  2. Step 2: Convert to fraction form
    661,942.81/910,614.58 = 579,901.62/x
  3. Step 3: Cross multiply
    661,942.81x = 910,614.58 × 579,901.62
  4. Step 4: Simplify right side
    661,942.81x = 528,066,870,137.62
  5. Step 5: Solve for x
    x = 528,066,870,137.62/661,942.81
  6. Step 6: Final answer
    x = 797,753.01

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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.