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Finding the Fourth Proportional to 824,178.45, 1,234,791.45 and 706,080.45

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Solution

The fourth proportional to 824,178.45, 1,234,791.45 and 706,080.45 is: 1,057,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,178.45 : 1,234,791.45 = 706,080.45 : x
  2. Step 2: Convert to fraction form
    824,178.45/1,234,791.45 = 706,080.45/x
  3. Step 3: Cross multiply
    824,178.45x = 1,234,791.45 × 706,080.45
  4. Step 4: Simplify right side
    824,178.45x = 871,862,102,672.15
  5. Step 5: Solve for x
    x = 871,862,102,672.15/824,178.45
  6. Step 6: Final answer
    x = 1,057,855.98

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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.