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Finding the Fourth Proportional to 632,929.05, 873,408.29 and 346,393.71

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Solution

The fourth proportional to 632,929.05, 873,408.29 and 346,393.71 is: 478,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,929.05 : 873,408.29 = 346,393.71 : x
  2. Step 2: Convert to fraction form
    632,929.05/873,408.29 = 346,393.71/x
  3. Step 3: Cross multiply
    632,929.05x = 873,408.29 × 346,393.71
  4. Step 4: Simplify right side
    632,929.05x = 302,543,136,185.89
  5. Step 5: Solve for x
    x = 302,543,136,185.89/632,929.05
  6. Step 6: Final answer
    x = 478,004.82

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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.