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Finding the Fourth Proportional to 660,582.68, 911,573.57 and 374,104.82

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Solution

The fourth proportional to 660,582.68, 911,573.57 and 374,104.82 is: 516,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,582.68 : 911,573.57 = 374,104.82 : x
  2. Step 2: Convert to fraction form
    660,582.68/911,573.57 = 374,104.82/x
  3. Step 3: Cross multiply
    660,582.68x = 911,573.57 × 374,104.82
  4. Step 4: Simplify right side
    660,582.68x = 341,024,059,893.22
  5. Step 5: Solve for x
    x = 341,024,059,893.22/660,582.68
  6. Step 6: Final answer
    x = 516,247.36

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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.