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Finding the Fourth Proportional to 999,518.12, 1,497,708 and 679,822.46

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Solution

The fourth proportional to 999,518.12, 1,497,708 and 679,822.46 is: 1,018,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,518.12 : 1,497,708 = 679,822.46 : x
  2. Step 2: Convert to fraction form
    999,518.12/1,497,708 = 679,822.46/x
  3. Step 3: Cross multiply
    999,518.12x = 1,497,708 × 679,822.46
  4. Step 4: Simplify right side
    999,518.12x = 1,018,175,536,921.68
  5. Step 5: Solve for x
    x = 1,018,175,536,921.68/999,518.12
  6. Step 6: Final answer
    x = 1,018,666.41

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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.