Home / 619,048.18-853,923.54-389,241.16

Finding the Fourth Proportional to 619,048.18, 853,923.54 and 389,241.16

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Solution

The fourth proportional to 619,048.18, 853,923.54 and 389,241.16 is: 536,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,048.18 : 853,923.54 = 389,241.16 : x
  2. Step 2: Convert to fraction form
    619,048.18/853,923.54 = 389,241.16/x
  3. Step 3: Cross multiply
    619,048.18x = 853,923.54 × 389,241.16
  4. Step 4: Simplify right side
    619,048.18x = 332,382,189,260.91
  5. Step 5: Solve for x
    x = 332,382,189,260.91/619,048.18
  6. Step 6: Final answer
    x = 536,924.59

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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.