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Finding the Fourth Proportional to 603,132.39, 832,263.79 and 348,478.11

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Solution

The fourth proportional to 603,132.39, 832,263.79 and 348,478.11 is: 480,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,132.39 : 832,263.79 = 348,478.11 : x
  2. Step 2: Convert to fraction form
    603,132.39/832,263.79 = 348,478.11/x
  3. Step 3: Cross multiply
    603,132.39x = 832,263.79 × 348,478.11
  4. Step 4: Simplify right side
    603,132.39x = 290,025,712,560.64
  5. Step 5: Solve for x
    x = 290,025,712,560.64/603,132.39
  6. Step 6: Final answer
    x = 480,865.76

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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.