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Finding the Fourth Proportional to 675,617.33, 932,689.46 and 389,082.06

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Solution

The fourth proportional to 675,617.33, 932,689.46 and 389,082.06 is: 537,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,617.33 : 932,689.46 = 389,082.06 : x
  2. Step 2: Convert to fraction form
    675,617.33/932,689.46 = 389,082.06/x
  3. Step 3: Cross multiply
    675,617.33x = 932,689.46 × 389,082.06
  4. Step 4: Simplify right side
    675,617.33x = 362,892,736,437.09
  5. Step 5: Solve for x
    x = 362,892,736,437.09/675,617.33
  6. Step 6: Final answer
    x = 537,127.63

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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.