Home / 1,116,193.49-1,673,888.45-386,519.12

Finding the Fourth Proportional to 1,116,193.49, 1,673,888.45 and 386,519.12

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Solution

The fourth proportional to 1,116,193.49, 1,673,888.45 and 386,519.12 is: 579,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,193.49 : 1,673,888.45 = 386,519.12 : x
  2. Step 2: Convert to fraction form
    1,116,193.49/1,673,888.45 = 386,519.12/x
  3. Step 3: Cross multiply
    1,116,193.49x = 1,673,888.45 × 386,519.12
  4. Step 4: Simplify right side
    1,116,193.49x = 646,989,882,302.72
  5. Step 5: Solve for x
    x = 646,989,882,302.72/1,116,193.49
  6. Step 6: Final answer
    x = 579,639.54

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Double scale
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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.