Home / 422,541.38-634,445.23-365,790.35

Finding the Fourth Proportional to 422,541.38, 634,445.23 and 365,790.35

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Solution

The fourth proportional to 422,541.38, 634,445.23 and 365,790.35 is: 549,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,541.38 : 634,445.23 = 365,790.35 : x
  2. Step 2: Convert to fraction form
    422,541.38/634,445.23 = 365,790.35/x
  3. Step 3: Cross multiply
    422,541.38x = 634,445.23 × 365,790.35
  4. Step 4: Simplify right side
    422,541.38x = 232,073,939,565.30
  5. Step 5: Solve for x
    x = 232,073,939,565.30/422,541.38
  6. Step 6: Final answer
    x = 549,233.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.