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Finding the Fourth Proportional to 603,405.88, 832,607.64 and 348,707.92

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Solution

The fourth proportional to 603,405.88, 832,607.64 and 348,707.92 is: 481,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,405.88 : 832,607.64 = 348,707.92 : x
  2. Step 2: Convert to fraction form
    603,405.88/832,607.64 = 348,707.92/x
  3. Step 3: Cross multiply
    603,405.88x = 832,607.64 × 348,707.92
  4. Step 4: Simplify right side
    603,405.88x = 290,336,878,320.51
  5. Step 5: Solve for x
    x = 290,336,878,320.51/603,405.88
  6. Step 6: Final answer
    x = 481,163.49

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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.