Home / 527,644.20-791,447.10-212,015.40

Finding the Fourth Proportional to 527,644.20, 791,447.10 and 212,015.40

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Solution

The fourth proportional to 527,644.20, 791,447.10 and 212,015.40 is: 318,015.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,644.20 : 791,447.10 = 212,015.40 : x
  2. Step 2: Convert to fraction form
    527,644.20/791,447.10 = 212,015.40/x
  3. Step 3: Cross multiply
    527,644.20x = 791,447.10 × 212,015.40
  4. Step 4: Simplify right side
    527,644.20x = 167,798,973,485.34
  5. Step 5: Solve for x
    x = 167,798,973,485.34/527,644.20
  6. Step 6: Final answer
    x = 318,015.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.