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Finding the Fourth Proportional to 590,982.20, 886,473.30 and 402,025.40

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Solution

The fourth proportional to 590,982.20, 886,473.30 and 402,025.40 is: 603,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,982.20 : 886,473.30 = 402,025.40 : x
  2. Step 2: Convert to fraction form
    590,982.20/886,473.30 = 402,025.40/x
  3. Step 3: Cross multiply
    590,982.20x = 886,473.30 × 402,025.40
  4. Step 4: Simplify right side
    590,982.20x = 356,384,783,021.82
  5. Step 5: Solve for x
    x = 356,384,783,021.82/590,982.20
  6. Step 6: Final answer
    x = 603,038.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.