Home / 1,328,411.80-1,992,617.70-529,816.60

Finding the Fourth Proportional to 1,328,411.80, 1,992,617.70 and 529,816.60

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Solution

The fourth proportional to 1,328,411.80, 1,992,617.70 and 529,816.60 is: 794,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,411.80 : 1,992,617.70 = 529,816.60 : x
  2. Step 2: Convert to fraction form
    1,328,411.80/1,992,617.70 = 529,816.60/x
  3. Step 3: Cross multiply
    1,328,411.80x = 1,992,617.70 × 529,816.60
  4. Step 4: Simplify right side
    1,328,411.80x = 1,055,721,934,913.82
  5. Step 5: Solve for x
    x = 1,055,721,934,913.82/1,328,411.80
  6. Step 6: Final answer
    x = 794,724.90

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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.