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Finding the Fourth Proportional to 457,486.84, 631,314.66 and 253,532.44

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Solution

The fourth proportional to 457,486.84, 631,314.66 and 253,532.44 is: 349,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,486.84 : 631,314.66 = 253,532.44 : x
  2. Step 2: Convert to fraction form
    457,486.84/631,314.66 = 253,532.44/x
  3. Step 3: Cross multiply
    457,486.84x = 631,314.66 × 253,532.44
  4. Step 4: Simplify right side
    457,486.84x = 160,058,746,157.57
  5. Step 5: Solve for x
    x = 160,058,746,157.57/457,486.84
  6. Step 6: Final answer
    x = 349,865.25

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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.