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Finding the Fourth Proportional to 674,696.98, 931,056.28 and 368,770.84

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Solution

The fourth proportional to 674,696.98, 931,056.28 and 368,770.84 is: 508,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,696.98 : 931,056.28 = 368,770.84 : x
  2. Step 2: Convert to fraction form
    674,696.98/931,056.28 = 368,770.84/x
  3. Step 3: Cross multiply
    674,696.98x = 931,056.28 × 368,770.84
  4. Step 4: Simplify right side
    674,696.98x = 343,346,406,462.88
  5. Step 5: Solve for x
    x = 343,346,406,462.88/674,696.98
  6. Step 6: Final answer
    x = 508,889.79

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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.