Home / 527,126.48-727,431.24-285,408.30

Finding the Fourth Proportional to 527,126.48, 727,431.24 and 285,408.30

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Solution

The fourth proportional to 527,126.48, 727,431.24 and 285,408.30 is: 393,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,126.48 : 727,431.24 = 285,408.30 : x
  2. Step 2: Convert to fraction form
    527,126.48/727,431.24 = 285,408.30/x
  3. Step 3: Cross multiply
    527,126.48x = 727,431.24 × 285,408.30
  4. Step 4: Simplify right side
    527,126.48x = 207,614,913,575.29
  5. Step 5: Solve for x
    x = 207,614,913,575.29/527,126.48
  6. Step 6: Final answer
    x = 393,861.67

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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.