Home / 619,050.15-853,926.30-389,243.16

Finding the Fourth Proportional to 619,050.15, 853,926.30 and 389,243.16

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Solution

The fourth proportional to 619,050.15, 853,926.30 and 389,243.16 is: 536,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,050.15 : 853,926.30 = 389,243.16 : x
  2. Step 2: Convert to fraction form
    619,050.15/853,926.30 = 389,243.16/x
  3. Step 3: Cross multiply
    619,050.15x = 853,926.30 × 389,243.16
  4. Step 4: Simplify right side
    619,050.15x = 332,384,971,419.11
  5. Step 5: Solve for x
    x = 332,384,971,419.11/619,050.15
  6. Step 6: Final answer
    x = 536,927.37

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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.