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Finding the Fourth Proportional to 555,086.34, 766,025.64 and 325,647.57

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Solution

The fourth proportional to 555,086.34, 766,025.64 and 325,647.57 is: 449,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,086.34 : 766,025.64 = 325,647.57 : x
  2. Step 2: Convert to fraction form
    555,086.34/766,025.64 = 325,647.57/x
  3. Step 3: Cross multiply
    555,086.34x = 766,025.64 × 325,647.57
  4. Step 4: Simplify right side
    555,086.34x = 249,454,386,006.78
  5. Step 5: Solve for x
    x = 249,454,386,006.78/555,086.34
  6. Step 6: Final answer
    x = 449,397.45

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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.