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Finding the Fourth Proportional to 461,168.42, 636,708.51 and 289,322.01

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Solution

The fourth proportional to 461,168.42, 636,708.51 and 289,322.01 is: 399,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,168.42 : 636,708.51 = 289,322.01 : x
  2. Step 2: Convert to fraction form
    461,168.42/636,708.51 = 289,322.01/x
  3. Step 3: Cross multiply
    461,168.42x = 636,708.51 × 289,322.01
  4. Step 4: Simplify right side
    461,168.42x = 184,213,785,897.31
  5. Step 5: Solve for x
    x = 184,213,785,897.31/461,168.42
  6. Step 6: Final answer
    x = 399,450.14

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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.