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Finding the Fourth Proportional to 564,678.42, 779,033.94 and 322,831.04

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Solution

The fourth proportional to 564,678.42, 779,033.94 and 322,831.04 is: 445,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,678.42 : 779,033.94 = 322,831.04 : x
  2. Step 2: Convert to fraction form
    564,678.42/779,033.94 = 322,831.04/x
  3. Step 3: Cross multiply
    564,678.42x = 779,033.94 × 322,831.04
  4. Step 4: Simplify right side
    564,678.42x = 251,496,337,045.50
  5. Step 5: Solve for x
    x = 251,496,337,045.50/564,678.42
  6. Step 6: Final answer
    x = 445,379.76

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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.