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Finding the Fourth Proportional to 457,429.17, 631,255.98 and 253,483.53

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Solution

The fourth proportional to 457,429.17, 631,255.98 and 253,483.53 is: 349,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,429.17 : 631,255.98 = 253,483.53 : x
  2. Step 2: Convert to fraction form
    457,429.17/631,255.98 = 253,483.53/x
  3. Step 3: Cross multiply
    457,429.17x = 631,255.98 × 253,483.53
  4. Step 4: Simplify right side
    457,429.17x = 160,012,992,727.36
  5. Step 5: Solve for x
    x = 160,012,992,727.36/457,429.17
  6. Step 6: Final answer
    x = 349,809.33

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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.