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Finding the Fourth Proportional to 575,659.20, 794,410.50 and 317,530.38

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Solution

The fourth proportional to 575,659.20, 794,410.50 and 317,530.38 is: 438,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,659.20 : 794,410.50 = 317,530.38 : x
  2. Step 2: Convert to fraction form
    575,659.20/794,410.50 = 317,530.38/x
  3. Step 3: Cross multiply
    575,659.20x = 794,410.50 × 317,530.38
  4. Step 4: Simplify right side
    575,659.20x = 252,249,467,940.99
  5. Step 5: Solve for x
    x = 252,249,467,940.99/575,659.20
  6. Step 6: Final answer
    x = 438,192.37

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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.