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Finding the Fourth Proportional to 632,978.19, 873,519.54 and 346,524.93

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Solution

The fourth proportional to 632,978.19, 873,519.54 and 346,524.93 is: 478,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,978.19 : 873,519.54 = 346,524.93 : x
  2. Step 2: Convert to fraction form
    632,978.19/873,519.54 = 346,524.93/x
  3. Step 3: Cross multiply
    632,978.19x = 873,519.54 × 346,524.93
  4. Step 4: Simplify right side
    632,978.19x = 302,696,297,452.13
  5. Step 5: Solve for x
    x = 302,696,297,452.13/632,978.19
  6. Step 6: Final answer
    x = 478,209.68

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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.