Home / 1,116,194.49-1,673,889.95-386,520.12

Finding the Fourth Proportional to 1,116,194.49, 1,673,889.95 and 386,520.12

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Solution

The fourth proportional to 1,116,194.49, 1,673,889.95 and 386,520.12 is: 579,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,194.49 : 1,673,889.95 = 386,520.12 : x
  2. Step 2: Convert to fraction form
    1,116,194.49/1,673,889.95 = 386,520.12/x
  3. Step 3: Cross multiply
    1,116,194.49x = 1,673,889.95 × 386,520.12
  4. Step 4: Simplify right side
    1,116,194.49x = 646,992,144,340.79
  5. Step 5: Solve for x
    x = 646,992,144,340.79/1,116,194.49
  6. Step 6: Final answer
    x = 579,641.05

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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.