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Finding the Fourth Proportional to 676,539.17, 933,621.31 and 370,615.12

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Solution

The fourth proportional to 676,539.17, 933,621.31 and 370,615.12 is: 511,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,539.17 : 933,621.31 = 370,615.12 : x
  2. Step 2: Convert to fraction form
    676,539.17/933,621.31 = 370,615.12/x
  3. Step 3: Cross multiply
    676,539.17x = 933,621.31 × 370,615.12
  4. Step 4: Simplify right side
    676,539.17x = 346,014,173,840.21
  5. Step 5: Solve for x
    x = 346,014,173,840.21/676,539.17
  6. Step 6: Final answer
    x = 511,447.36

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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.