Home / 861,595.38-1,189,022.49-479,647.98

Finding the Fourth Proportional to 861,595.38, 1,189,022.49 and 479,647.98

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Solution

The fourth proportional to 861,595.38, 1,189,022.49 and 479,647.98 is: 661,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,595.38 : 1,189,022.49 = 479,647.98 : x
  2. Step 2: Convert to fraction form
    861,595.38/1,189,022.49 = 479,647.98/x
  3. Step 3: Cross multiply
    861,595.38x = 1,189,022.49 × 479,647.98
  4. Step 4: Simplify right side
    861,595.38x = 570,312,235,503.07
  5. Step 5: Solve for x
    x = 570,312,235,503.07/861,595.38
  6. Step 6: Final answer
    x = 661,925.83

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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.