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Finding the Fourth Proportional to 455,860.85, 683,820.45 and 175,378.10

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Solution

The fourth proportional to 455,860.85, 683,820.45 and 175,378.10 is: 263,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,860.85 : 683,820.45 = 175,378.10 : x
  2. Step 2: Convert to fraction form
    455,860.85/683,820.45 = 175,378.10/x
  3. Step 3: Cross multiply
    455,860.85x = 683,820.45 × 175,378.10
  4. Step 4: Simplify right side
    455,860.85x = 119,927,127,843.04
  5. Step 5: Solve for x
    x = 119,927,127,843.04/455,860.85
  6. Step 6: Final answer
    x = 263,078.37

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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.