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Finding the Fourth Proportional to 575,820.12, 794,634.51 and 317,697.05

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Solution

The fourth proportional to 575,820.12, 794,634.51 and 317,697.05 is: 438,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,820.12 : 794,634.51 = 317,697.05 : x
  2. Step 2: Convert to fraction form
    575,820.12/794,634.51 = 317,697.05/x
  3. Step 3: Cross multiply
    575,820.12x = 794,634.51 × 317,697.05
  4. Step 4: Simplify right side
    575,820.12x = 252,453,034,093.54
  5. Step 5: Solve for x
    x = 252,453,034,093.54/575,820.12
  6. Step 6: Final answer
    x = 438,423.44

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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.