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Finding the Fourth Proportional to 318,329.83, 439,295.39 and 175,100.77

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Solution

The fourth proportional to 318,329.83, 439,295.39 and 175,100.77 is: 241,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,329.83 : 439,295.39 = 175,100.77 : x
  2. Step 2: Convert to fraction form
    318,329.83/439,295.39 = 175,100.77/x
  3. Step 3: Cross multiply
    318,329.83x = 439,295.39 × 175,100.77
  4. Step 4: Simplify right side
    318,329.83x = 76,920,961,046.45
  5. Step 5: Solve for x
    x = 76,920,961,046.45/318,329.83
  6. Step 6: Final answer
    x = 241,639.19

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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.