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Finding the Fourth Proportional to 468,468.42, 646,486.62 and 253,608.47

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Solution

The fourth proportional to 468,468.42, 646,486.62 and 253,608.47 is: 349,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,468.42 : 646,486.62 = 253,608.47 : x
  2. Step 2: Convert to fraction form
    468,468.42/646,486.62 = 253,608.47/x
  3. Step 3: Cross multiply
    468,468.42x = 646,486.62 × 253,608.47
  4. Step 4: Simplify right side
    468,468.42x = 163,954,482,573.67
  5. Step 5: Solve for x
    x = 163,954,482,573.67/468,468.42
  6. Step 6: Final answer
    x = 349,979.80

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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.