Home / 619,124.76-854,030.18-389,318.36

Finding the Fourth Proportional to 619,124.76, 854,030.18 and 389,318.36

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Solution

The fourth proportional to 619,124.76, 854,030.18 and 389,318.36 is: 537,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,124.76 : 854,030.18 = 389,318.36 : x
  2. Step 2: Convert to fraction form
    619,124.76/854,030.18 = 389,318.36/x
  3. Step 3: Cross multiply
    619,124.76x = 854,030.18 × 389,318.36
  4. Step 4: Simplify right side
    619,124.76x = 332,489,629,068.11
  5. Step 5: Solve for x
    x = 332,489,629,068.11/619,124.76
  6. Step 6: Final answer
    x = 537,031.71

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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.