Home / 825,730.20-1,239,747.30-528,053.40

Finding the Fourth Proportional to 825,730.20, 1,239,747.30 and 528,053.40

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Solution

The fourth proportional to 825,730.20, 1,239,747.30 and 528,053.40 is: 792,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,730.20 : 1,239,747.30 = 528,053.40 : x
  2. Step 2: Convert to fraction form
    825,730.20/1,239,747.30 = 528,053.40/x
  3. Step 3: Cross multiply
    825,730.20x = 1,239,747.30 × 528,053.40
  4. Step 4: Simplify right side
    825,730.20x = 654,652,776,905.82
  5. Step 5: Solve for x
    x = 654,652,776,905.82/825,730.20
  6. Step 6: Final answer
    x = 792,816.80

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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.