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Finding the Fourth Proportional to 450,911, 622,257.36 and 249,707

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Solution

The fourth proportional to 450,911, 622,257.36 and 249,707 is: 344,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,911 : 622,257.36 = 249,707 : x
  2. Step 2: Convert to fraction form
    450,911/622,257.36 = 249,707/x
  3. Step 3: Cross multiply
    450,911x = 622,257.36 × 249,707
  4. Step 4: Simplify right side
    450,911x = 155,382,018,593.52
  5. Step 5: Solve for x
    x = 155,382,018,593.52/450,911
  6. Step 6: Final answer
    x = 344,595.76

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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.