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Finding the Fourth Proportional to 488,307.78, 673,907.13 and 273,443.94

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Solution

The fourth proportional to 488,307.78, 673,907.13 and 273,443.94 is: 377,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,307.78 : 673,907.13 = 273,443.94 : x
  2. Step 2: Convert to fraction form
    488,307.78/673,907.13 = 273,443.94/x
  3. Step 3: Cross multiply
    488,307.78x = 673,907.13 × 273,443.94
  4. Step 4: Simplify right side
    488,307.78x = 184,275,820,821.29
  5. Step 5: Solve for x
    x = 184,275,820,821.29/488,307.78
  6. Step 6: Final answer
    x = 377,376.38

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1.5x scale

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.