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Finding the Fourth Proportional to 603,616.40, 832,941.88 and 348,984

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Solution

The fourth proportional to 603,616.40, 832,941.88 and 348,984 is: 481,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,616.40 : 832,941.88 = 348,984 : x
  2. Step 2: Convert to fraction form
    603,616.40/832,941.88 = 348,984/x
  3. Step 3: Cross multiply
    603,616.40x = 832,941.88 × 348,984
  4. Step 4: Simplify right side
    603,616.40x = 290,683,389,049.92
  5. Step 5: Solve for x
    x = 290,683,389,049.92/603,616.40
  6. Step 6: Final answer
    x = 481,569.73

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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.