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Finding the Fourth Proportional to 554,700.54, 765,486.72 and 300,051.66

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Solution

The fourth proportional to 554,700.54, 765,486.72 and 300,051.66 is: 414,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,700.54 : 765,486.72 = 300,051.66 : x
  2. Step 2: Convert to fraction form
    554,700.54/765,486.72 = 300,051.66/x
  3. Step 3: Cross multiply
    554,700.54x = 765,486.72 × 300,051.66
  4. Step 4: Simplify right side
    554,700.54x = 229,685,561,043.96
  5. Step 5: Solve for x
    x = 229,685,561,043.96/554,700.54
  6. Step 6: Final answer
    x = 414,071.28

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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.