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Finding the Fourth Proportional to 499,354.01, 689,108.41 and 272,999.51

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Solution

The fourth proportional to 499,354.01, 689,108.41 and 272,999.51 is: 376,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,354.01 : 689,108.41 = 272,999.51 : x
  2. Step 2: Convert to fraction form
    499,354.01/689,108.41 = 272,999.51/x
  3. Step 3: Cross multiply
    499,354.01x = 689,108.41 × 272,999.51
  4. Step 4: Simplify right side
    499,354.01x = 188,126,258,266.88
  5. Step 5: Solve for x
    x = 188,126,258,266.88/499,354.01
  6. Step 6: Final answer
    x = 376,739.26

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1.5x scale

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.