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Finding the Fourth Proportional to 450,229.44, 621,308.96 and 249,025.28

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Solution

The fourth proportional to 450,229.44, 621,308.96 and 249,025.28 is: 343,650.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,229.44 : 621,308.96 = 249,025.28 : x
  2. Step 2: Convert to fraction form
    450,229.44/621,308.96 = 249,025.28/x
  3. Step 3: Cross multiply
    450,229.44x = 621,308.96 × 249,025.28
  4. Step 4: Simplify right side
    450,229.44x = 154,721,637,730.51
  5. Step 5: Solve for x
    x = 154,721,637,730.51/450,229.44
  6. Step 6: Final answer
    x = 343,650.65

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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.