Home / 626,021.59-863,909.85-354,083.63

Finding the Fourth Proportional to 626,021.59, 863,909.85 and 354,083.63

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Solution

The fourth proportional to 626,021.59, 863,909.85 and 354,083.63 is: 488,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,021.59 : 863,909.85 = 354,083.63 : x
  2. Step 2: Convert to fraction form
    626,021.59/863,909.85 = 354,083.63/x
  3. Step 3: Cross multiply
    626,021.59x = 863,909.85 × 354,083.63
  4. Step 4: Simplify right side
    626,021.59x = 305,896,339,168.34
  5. Step 5: Solve for x
    x = 305,896,339,168.34/626,021.59
  6. Step 6: Final answer
    x = 488,635.45

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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.