Home / 816,607.96-1,126,917.78-454,020.28

Finding the Fourth Proportional to 816,607.96, 1,126,917.78 and 454,020.28

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Solution

The fourth proportional to 816,607.96, 1,126,917.78 and 454,020.28 is: 626,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,607.96 : 1,126,917.78 = 454,020.28 : x
  2. Step 2: Convert to fraction form
    816,607.96/1,126,917.78 = 454,020.28/x
  3. Step 3: Cross multiply
    816,607.96x = 1,126,917.78 × 454,020.28
  4. Step 4: Simplify right side
    816,607.96x = 511,643,526,012.58
  5. Step 5: Solve for x
    x = 511,643,526,012.58/816,607.96
  6. Step 6: Final answer
    x = 626,547.32

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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.