Home / 370,317.70-511,079.98-209,183.12

Finding the Fourth Proportional to 370,317.70, 511,079.98 and 209,183.12

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Solution

The fourth proportional to 370,317.70, 511,079.98 and 209,183.12 is: 288,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,317.70 : 511,079.98 = 209,183.12 : x
  2. Step 2: Convert to fraction form
    370,317.70/511,079.98 = 209,183.12/x
  3. Step 3: Cross multiply
    370,317.70x = 511,079.98 × 209,183.12
  4. Step 4: Simplify right side
    370,317.70x = 106,909,304,785.94
  5. Step 5: Solve for x
    x = 106,909,304,785.94/370,317.70
  6. Step 6: Final answer
    x = 288,696.18

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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.