Home / 867,509.19-1,197,162.54-485,536.01

Finding the Fourth Proportional to 867,509.19, 1,197,162.54 and 485,536.01

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Solution

The fourth proportional to 867,509.19, 1,197,162.54 and 485,536.01 is: 670,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,509.19 : 1,197,162.54 = 485,536.01 : x
  2. Step 2: Convert to fraction form
    867,509.19/1,197,162.54 = 485,536.01/x
  3. Step 3: Cross multiply
    867,509.19x = 1,197,162.54 × 485,536.01
  4. Step 4: Simplify right side
    867,509.19x = 581,265,517,007.25
  5. Step 5: Solve for x
    x = 581,265,517,007.25/867,509.19
  6. Step 6: Final answer
    x = 670,039.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.