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Finding the Fourth Proportional to 556,055.69, 767,336.29 and 301,401.41

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Solution

The fourth proportional to 556,055.69, 767,336.29 and 301,401.41 is: 415,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,055.69 : 767,336.29 = 301,401.41 : x
  2. Step 2: Convert to fraction form
    556,055.69/767,336.29 = 301,401.41/x
  3. Step 3: Cross multiply
    556,055.69x = 767,336.29 × 301,401.41
  4. Step 4: Simplify right side
    556,055.69x = 231,276,235,159.98
  5. Step 5: Solve for x
    x = 231,276,235,159.98/556,055.69
  6. Step 6: Final answer
    x = 415,922.80

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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.