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Finding the Fourth Proportional to 603,139.40, 832,273.46 and 348,485.12

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Solution

The fourth proportional to 603,139.40, 832,273.46 and 348,485.12 is: 480,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,139.40 : 832,273.46 = 348,485.12 : x
  2. Step 2: Convert to fraction form
    603,139.40/832,273.46 = 348,485.12/x
  3. Step 3: Cross multiply
    603,139.40x = 832,273.46 × 348,485.12
  4. Step 4: Simplify right side
    603,139.40x = 290,034,916,580.92
  5. Step 5: Solve for x
    x = 290,034,916,580.92/603,139.40
  6. Step 6: Final answer
    x = 480,875.43

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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.