Home / 816,628.32-1,126,998.16-454,133.28

Finding the Fourth Proportional to 816,628.32, 1,126,998.16 and 454,133.28

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Solution

The fourth proportional to 816,628.32, 1,126,998.16 and 454,133.28 is: 626,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,628.32 : 1,126,998.16 = 454,133.28 : x
  2. Step 2: Convert to fraction form
    816,628.32/1,126,998.16 = 454,133.28/x
  3. Step 3: Cross multiply
    816,628.32x = 1,126,998.16 × 454,133.28
  4. Step 4: Simplify right side
    816,628.32x = 511,807,370,954.77
  5. Step 5: Solve for x
    x = 511,807,370,954.77/816,628.32
  6. Step 6: Final answer
    x = 626,732.33

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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.