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Finding the Fourth Proportional to 468,272.45, 646,215.94 and 253,412.53

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Solution

The fourth proportional to 468,272.45, 646,215.94 and 253,412.53 is: 349,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,272.45 : 646,215.94 = 253,412.53 : x
  2. Step 2: Convert to fraction form
    468,272.45/646,215.94 = 253,412.53/x
  3. Step 3: Cross multiply
    468,272.45x = 646,215.94 × 253,412.53
  4. Step 4: Simplify right side
    468,272.45x = 163,759,214,032.66
  5. Step 5: Solve for x
    x = 163,759,214,032.66/468,272.45
  6. Step 6: Final answer
    x = 349,709.26

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1.5x scale

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.