Home / 1,993,116.85-2,988,937.16-644,929.76

Finding the Fourth Proportional to 1,993,116.85, 2,988,937.16 and 644,929.76

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Solution

The fourth proportional to 1,993,116.85, 2,988,937.16 and 644,929.76 is: 967,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,116.85 : 2,988,937.16 = 644,929.76 : x
  2. Step 2: Convert to fraction form
    1,993,116.85/2,988,937.16 = 644,929.76/x
  3. Step 3: Cross multiply
    1,993,116.85x = 2,988,937.16 × 644,929.76
  4. Step 4: Simplify right side
    1,993,116.85x = 1,927,654,531,920.06
  5. Step 5: Solve for x
    x = 1,927,654,531,920.06/1,993,116.85
  6. Step 6: Final answer
    x = 967,155.81

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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.