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Finding the Fourth Proportional to 476,627.80, 715,460.10 and 266,675.80

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Solution

The fourth proportional to 476,627.80, 715,460.10 and 266,675.80 is: 400,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,627.80 : 715,460.10 = 266,675.80 : x
  2. Step 2: Convert to fraction form
    476,627.80/715,460.10 = 266,675.80/x
  3. Step 3: Cross multiply
    476,627.80x = 715,460.10 × 266,675.80
  4. Step 4: Simplify right side
    476,627.80x = 190,795,894,535.58
  5. Step 5: Solve for x
    x = 190,795,894,535.58/476,627.80
  6. Step 6: Final answer
    x = 400,303.75

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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.