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Finding the Fourth Proportional to 468,468.21, 646,486.35 and 253,608.27

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Solution

The fourth proportional to 468,468.21, 646,486.35 and 253,608.27 is: 349,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,468.21 : 646,486.35 = 253,608.27 : x
  2. Step 2: Convert to fraction form
    468,468.21/646,486.35 = 253,608.27/x
  3. Step 3: Cross multiply
    468,468.21x = 646,486.35 × 253,608.27
  4. Step 4: Simplify right side
    468,468.21x = 163,954,283,534.07
  5. Step 5: Solve for x
    x = 163,954,283,534.07/468,468.21
  6. Step 6: Final answer
    x = 349,979.53

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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.