Home / 527,643.20-791,445.60-212,014.40

Finding the Fourth Proportional to 527,643.20, 791,445.60 and 212,014.40

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Solution

The fourth proportional to 527,643.20, 791,445.60 and 212,014.40 is: 318,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,643.20 : 791,445.60 = 212,014.40 : x
  2. Step 2: Convert to fraction form
    527,643.20/791,445.60 = 212,014.40/x
  3. Step 3: Cross multiply
    527,643.20x = 791,445.60 × 212,014.40
  4. Step 4: Simplify right side
    527,643.20x = 167,797,864,016.64
  5. Step 5: Solve for x
    x = 167,797,864,016.64/527,643.20
  6. Step 6: Final answer
    x = 318,013.89

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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.