Home / 1,185,616.51-1,778,707.69-386,899.54

Finding the Fourth Proportional to 1,185,616.51, 1,778,707.69 and 386,899.54

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Solution

The fourth proportional to 1,185,616.51, 1,778,707.69 and 386,899.54 is: 580,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,616.51 : 1,778,707.69 = 386,899.54 : x
  2. Step 2: Convert to fraction form
    1,185,616.51/1,778,707.69 = 386,899.54/x
  3. Step 3: Cross multiply
    1,185,616.51x = 1,778,707.69 × 386,899.54
  4. Step 4: Simplify right side
    1,185,616.51x = 688,181,181,641.45
  5. Step 5: Solve for x
    x = 688,181,181,641.45/1,185,616.51
  6. Step 6: Final answer
    x = 580,441.63

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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.