Home / 816,390.24-1,126,583.52-453,813.36

Finding the Fourth Proportional to 816,390.24, 1,126,583.52 and 453,813.36

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Solution

The fourth proportional to 816,390.24, 1,126,583.52 and 453,813.36 is: 626,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,390.24 : 1,126,583.52 = 453,813.36 : x
  2. Step 2: Convert to fraction form
    816,390.24/1,126,583.52 = 453,813.36/x
  3. Step 3: Cross multiply
    816,390.24x = 1,126,583.52 × 453,813.36
  4. Step 4: Simplify right side
    816,390.24x = 511,258,652,531.83
  5. Step 5: Solve for x
    x = 511,258,652,531.83/816,390.24
  6. Step 6: Final answer
    x = 626,242.97

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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.