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Finding the Fourth Proportional to 549,076.72, 822,273.72 and 338,424.88

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Solution

The fourth proportional to 549,076.72, 822,273.72 and 338,424.88 is: 506,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,076.72 : 822,273.72 = 338,424.88 : x
  2. Step 2: Convert to fraction form
    549,076.72/822,273.72 = 338,424.88/x
  3. Step 3: Cross multiply
    549,076.72x = 822,273.72 × 338,424.88
  4. Step 4: Simplify right side
    549,076.72x = 278,277,885,018.15
  5. Step 5: Solve for x
    x = 278,277,885,018.15/549,076.72
  6. Step 6: Final answer
    x = 506,810.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.