Home / 527,103.22-727,401.47-285,385.75

Finding the Fourth Proportional to 527,103.22, 727,401.47 and 285,385.75

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Solution

The fourth proportional to 527,103.22, 727,401.47 and 285,385.75 is: 393,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,103.22 : 727,401.47 = 285,385.75 : x
  2. Step 2: Convert to fraction form
    527,103.22/727,401.47 = 285,385.75/x
  3. Step 3: Cross multiply
    527,103.22x = 727,401.47 × 285,385.75
  4. Step 4: Simplify right side
    527,103.22x = 207,590,014,780.52
  5. Step 5: Solve for x
    x = 207,590,014,780.52/527,103.22
  6. Step 6: Final answer
    x = 393,831.81

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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.