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Finding the Fourth Proportional to 707,831.51, 977,020.94 and 481,608.23

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Solution

The fourth proportional to 707,831.51, 977,020.94 and 481,608.23 is: 664,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,831.51 : 977,020.94 = 481,608.23 : x
  2. Step 2: Convert to fraction form
    707,831.51/977,020.94 = 481,608.23/x
  3. Step 3: Cross multiply
    707,831.51x = 977,020.94 × 481,608.23
  4. Step 4: Simplify right side
    707,831.51x = 470,541,323,178.30
  5. Step 5: Solve for x
    x = 470,541,323,178.30/707,831.51
  6. Step 6: Final answer
    x = 664,764.59

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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.