Home / 1,285,730.39-1,928,300.43-766,552.51

Finding the Fourth Proportional to 1,285,730.39, 1,928,300.43 and 766,552.51

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Solution

The fourth proportional to 1,285,730.39, 1,928,300.43 and 766,552.51 is: 1,149,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,730.39 : 1,928,300.43 = 766,552.51 : x
  2. Step 2: Convert to fraction form
    1,285,730.39/1,928,300.43 = 766,552.51/x
  3. Step 3: Cross multiply
    1,285,730.39x = 1,928,300.43 × 766,552.51
  4. Step 4: Simplify right side
    1,285,730.39x = 1,478,143,525,009.08
  5. Step 5: Solve for x
    x = 1,478,143,525,009.08/1,285,730.39
  6. Step 6: Final answer
    x = 1,149,652.79

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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.