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Finding the Fourth Proportional to 374,361.39, 561,804.53 and 216,372.51

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Solution

The fourth proportional to 374,361.39, 561,804.53 and 216,372.51 is: 324,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,361.39 : 561,804.53 = 216,372.51 : x
  2. Step 2: Convert to fraction form
    374,361.39/561,804.53 = 216,372.51/x
  3. Step 3: Cross multiply
    374,361.39x = 561,804.53 × 216,372.51
  4. Step 4: Simplify right side
    374,361.39x = 121,559,055,203.61
  5. Step 5: Solve for x
    x = 121,559,055,203.61/374,361.39
  6. Step 6: Final answer
    x = 324,710.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.