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Finding the Fourth Proportional to 790,712.60, 1,090,737.74 and 500,234

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Solution

The fourth proportional to 790,712.60, 1,090,737.74 and 500,234 is: 690,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,712.60 : 1,090,737.74 = 500,234 : x
  2. Step 2: Convert to fraction form
    790,712.60/1,090,737.74 = 500,234/x
  3. Step 3: Cross multiply
    790,712.60x = 1,090,737.74 × 500,234
  4. Step 4: Simplify right side
    790,712.60x = 545,624,100,129.99
  5. Step 5: Solve for x
    x = 545,624,100,129.99/790,712.60
  6. Step 6: Final answer
    x = 690,040.98

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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.