Home / 867,021.77-1,196,465.43-479,853.42

Finding the Fourth Proportional to 867,021.77, 1,196,465.43 and 479,853.42

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Solution

The fourth proportional to 867,021.77, 1,196,465.43 and 479,853.42 is: 662,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,021.77 : 1,196,465.43 = 479,853.42 : x
  2. Step 2: Convert to fraction form
    867,021.77/1,196,465.43 = 479,853.42/x
  3. Step 3: Cross multiply
    867,021.77x = 1,196,465.43 × 479,853.42
  4. Step 4: Simplify right side
    867,021.77x = 574,128,023,110.80
  5. Step 5: Solve for x
    x = 574,128,023,110.80/867,021.77
  6. Step 6: Final answer
    x = 662,184.09

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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.