Home / 527,540.26-727,999.76-285,808.40

Finding the Fourth Proportional to 527,540.26, 727,999.76 and 285,808.40

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Solution

The fourth proportional to 527,540.26, 727,999.76 and 285,808.40 is: 394,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,540.26 : 727,999.76 = 285,808.40 : x
  2. Step 2: Convert to fraction form
    527,540.26/727,999.76 = 285,808.40/x
  3. Step 3: Cross multiply
    527,540.26x = 727,999.76 × 285,808.40
  4. Step 4: Simplify right side
    527,540.26x = 208,068,446,605.98
  5. Step 5: Solve for x
    x = 208,068,446,605.98/527,540.26
  6. Step 6: Final answer
    x = 394,412.45

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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.