Home / 527,515.90-727,970.97-285,804.61

Finding the Fourth Proportional to 527,515.90, 727,970.97 and 285,804.61

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Solution

The fourth proportional to 527,515.90, 727,970.97 and 285,804.61 is: 394,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,515.90 : 727,970.97 = 285,804.61 : x
  2. Step 2: Convert to fraction form
    527,515.90/727,970.97 = 285,804.61/x
  3. Step 3: Cross multiply
    527,515.90x = 727,970.97 × 285,804.61
  4. Step 4: Simplify right side
    527,515.90x = 208,057,459,172.17
  5. Step 5: Solve for x
    x = 208,057,459,172.17/527,515.90
  6. Step 6: Final answer
    x = 394,409.84

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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.