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Finding the Fourth Proportional to 468,463.16, 646,479.37 and 253,603.22

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Solution

The fourth proportional to 468,463.16, 646,479.37 and 253,603.22 is: 349,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,463.16 : 646,479.37 = 253,603.22 : x
  2. Step 2: Convert to fraction form
    468,463.16/646,479.37 = 253,603.22/x
  3. Step 3: Cross multiply
    468,463.16x = 646,479.37 × 253,603.22
  4. Step 4: Simplify right side
    468,463.16x = 163,949,249,895.57
  5. Step 5: Solve for x
    x = 163,949,249,895.57/468,463.16
  6. Step 6: Final answer
    x = 349,972.56

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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.