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Finding the Fourth Proportional to 633,211.74, 873,831.69 and 346,737.42

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Solution

The fourth proportional to 633,211.74, 873,831.69 and 346,737.42 is: 478,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,211.74 : 873,831.69 = 346,737.42 : x
  2. Step 2: Convert to fraction form
    633,211.74/873,831.69 = 346,737.42/x
  3. Step 3: Cross multiply
    633,211.74x = 873,831.69 × 346,737.42
  4. Step 4: Simplify right side
    633,211.74x = 302,990,145,704.84
  5. Step 5: Solve for x
    x = 302,990,145,704.84/633,211.74
  6. Step 6: Final answer
    x = 478,497.36

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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.