Home / 816,779.23-1,126,990.16-477,181.87

Finding the Fourth Proportional to 816,779.23, 1,126,990.16 and 477,181.87

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Solution

The fourth proportional to 816,779.23, 1,126,990.16 and 477,181.87 is: 658,414.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,779.23 : 1,126,990.16 = 477,181.87 : x
  2. Step 2: Convert to fraction form
    816,779.23/1,126,990.16 = 477,181.87/x
  3. Step 3: Cross multiply
    816,779.23x = 1,126,990.16 × 477,181.87
  4. Step 4: Simplify right side
    816,779.23x = 537,779,268,606.45
  5. Step 5: Solve for x
    x = 537,779,268,606.45/816,779.23
  6. Step 6: Final answer
    x = 658,414.48

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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.