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Finding the Fourth Proportional to 554,876, 765,646.72 and 336,971.32

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Solution

The fourth proportional to 554,876, 765,646.72 and 336,971.32 is: 464,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,876 : 765,646.72 = 336,971.32 : x
  2. Step 2: Convert to fraction form
    554,876/765,646.72 = 336,971.32/x
  3. Step 3: Cross multiply
    554,876x = 765,646.72 × 336,971.32
  4. Step 4: Simplify right side
    554,876x = 258,000,985,892.07
  5. Step 5: Solve for x
    x = 258,000,985,892.07/554,876
  6. Step 6: Final answer
    x = 464,970.53

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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.