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Finding the Fourth Proportional to 368,030.80, 550,879.80 and 263,054.80

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Solution

The fourth proportional to 368,030.80, 550,879.80 and 263,054.80 is: 393,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,030.80 : 550,879.80 = 263,054.80 : x
  2. Step 2: Convert to fraction form
    368,030.80/550,879.80 = 263,054.80/x
  3. Step 3: Cross multiply
    368,030.80x = 550,879.80 × 263,054.80
  4. Step 4: Simplify right side
    368,030.80x = 144,911,575,613.04
  5. Step 5: Solve for x
    x = 144,911,575,613.04/368,030.80
  6. Step 6: Final answer
    x = 393,748.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.