Home / 638,013.24-956,969.64-278,175.60

Finding the Fourth Proportional to 638,013.24, 956,969.64 and 278,175.60

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Solution

The fourth proportional to 638,013.24, 956,969.64 and 278,175.60 is: 417,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,013.24 : 956,969.64 = 278,175.60 : x
  2. Step 2: Convert to fraction form
    638,013.24/956,969.64 = 278,175.60/x
  3. Step 3: Cross multiply
    638,013.24x = 956,969.64 × 278,175.60
  4. Step 4: Simplify right side
    638,013.24x = 266,205,603,788.78
  5. Step 5: Solve for x
    x = 266,205,603,788.78/638,013.24
  6. Step 6: Final answer
    x = 417,241.50

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1.5x scale

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.