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Finding the Fourth Proportional to 671,043, 926,045.82 and 369,243.48

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Solution

The fourth proportional to 671,043, 926,045.82 and 369,243.48 is: 509,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,043 : 926,045.82 = 369,243.48 : x
  2. Step 2: Convert to fraction form
    671,043/926,045.82 = 369,243.48/x
  3. Step 3: Cross multiply
    671,043x = 926,045.82 × 369,243.48
  4. Step 4: Simplify right side
    671,043x = 341,936,381,216.25
  5. Step 5: Solve for x
    x = 341,936,381,216.25/671,043
  6. Step 6: Final answer
    x = 509,559.57

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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.