Home / 658,755.45-909,089.64-386,826.57

Finding the Fourth Proportional to 658,755.45, 909,089.64 and 386,826.57

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Solution

The fourth proportional to 658,755.45, 909,089.64 and 386,826.57 is: 533,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,755.45 : 909,089.64 = 386,826.57 : x
  2. Step 2: Convert to fraction form
    658,755.45/909,089.64 = 386,826.57/x
  3. Step 3: Cross multiply
    658,755.45x = 909,089.64 × 386,826.57
  4. Step 4: Simplify right side
    658,755.45x = 351,660,027,263.74
  5. Step 5: Solve for x
    x = 351,660,027,263.74/658,755.45
  6. Step 6: Final answer
    x = 533,824.85

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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.