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Finding the Fourth Proportional to 556,087.01, 767,425.68 and 314,379.77

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Solution

The fourth proportional to 556,087.01, 767,425.68 and 314,379.77 is: 433,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,087.01 : 767,425.68 = 314,379.77 : x
  2. Step 2: Convert to fraction form
    556,087.01/767,425.68 = 314,379.77/x
  3. Step 3: Cross multiply
    556,087.01x = 767,425.68 × 314,379.77
  4. Step 4: Simplify right side
    556,087.01x = 241,263,104,933.37
  5. Step 5: Solve for x
    x = 241,263,104,933.37/556,087.01
  6. Step 6: Final answer
    x = 433,858.56

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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.