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Finding the Fourth Proportional to 461,066.60, 636,274.64 and 257,130.41

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Solution

The fourth proportional to 461,066.60, 636,274.64 and 257,130.41 is: 354,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,066.60 : 636,274.64 = 257,130.41 : x
  2. Step 2: Convert to fraction form
    461,066.60/636,274.64 = 257,130.41/x
  3. Step 3: Cross multiply
    461,066.60x = 636,274.64 × 257,130.41
  4. Step 4: Simplify right side
    461,066.60x = 163,605,556,517.26
  5. Step 5: Solve for x
    x = 163,605,556,517.26/461,066.60
  6. Step 6: Final answer
    x = 354,841.48

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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.