Home / 527,221.83-727,566.53-285,504.67

Finding the Fourth Proportional to 527,221.83, 727,566.53 and 285,504.67

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Solution

The fourth proportional to 527,221.83, 727,566.53 and 285,504.67 is: 393,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,221.83 : 727,566.53 = 285,504.67 : x
  2. Step 2: Convert to fraction form
    527,221.83/727,566.53 = 285,504.67/x
  3. Step 3: Cross multiply
    527,221.83x = 727,566.53 × 285,504.67
  4. Step 4: Simplify right side
    527,221.83x = 207,723,641,532.63
  5. Step 5: Solve for x
    x = 207,723,641,532.63/527,221.83
  6. Step 6: Final answer
    x = 393,996.66

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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.