Home / 1,317,401.38-1,818,015.12-713,789.38

Finding the Fourth Proportional to 1,317,401.38, 1,818,015.12 and 713,789.38

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Solution

The fourth proportional to 1,317,401.38, 1,818,015.12 and 713,789.38 is: 985,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,401.38 : 1,818,015.12 = 713,789.38 : x
  2. Step 2: Convert to fraction form
    1,317,401.38/1,818,015.12 = 713,789.38/x
  3. Step 3: Cross multiply
    1,317,401.38x = 1,818,015.12 × 713,789.38
  4. Step 4: Simplify right side
    1,317,401.38x = 1,297,679,872,676.40
  5. Step 5: Solve for x
    x = 1,297,679,872,676.40/1,317,401.38
  6. Step 6: Final answer
    x = 985,030.00

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Double scale
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1.5x scale

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.