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Finding the Fourth Proportional to 575,396.61, 794,053.53 and 317,274.05

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Solution

The fourth proportional to 575,396.61, 794,053.53 and 317,274.05 is: 437,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,396.61 : 794,053.53 = 317,274.05 : x
  2. Step 2: Convert to fraction form
    575,396.61/794,053.53 = 317,274.05/x
  3. Step 3: Cross multiply
    575,396.61x = 794,053.53 × 317,274.05
  4. Step 4: Simplify right side
    575,396.61x = 251,932,575,409.63
  5. Step 5: Solve for x
    x = 251,932,575,409.63/575,396.61
  6. Step 6: Final answer
    x = 437,841.61

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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.