Home / 455,776.17-628,938.80-251,824.86

Finding the Fourth Proportional to 455,776.17, 628,938.80 and 251,824.86

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Solution

The fourth proportional to 455,776.17, 628,938.80 and 251,824.86 is: 347,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,776.17 : 628,938.80 = 251,824.86 : x
  2. Step 2: Convert to fraction form
    455,776.17/628,938.80 = 251,824.86/x
  3. Step 3: Cross multiply
    455,776.17x = 628,938.80 × 251,824.86
  4. Step 4: Simplify right side
    455,776.17x = 158,382,423,999.44
  5. Step 5: Solve for x
    x = 158,382,423,999.44/455,776.17
  6. Step 6: Final answer
    x = 347,500.45

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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.