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Finding the Fourth Proportional to 448,854.35, 619,511.19 and 274,454.37

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Solution

The fourth proportional to 448,854.35, 619,511.19 and 274,454.37 is: 378,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,854.35 : 619,511.19 = 274,454.37 : x
  2. Step 2: Convert to fraction form
    448,854.35/619,511.19 = 274,454.37/x
  3. Step 3: Cross multiply
    448,854.35x = 619,511.19 × 274,454.37
  4. Step 4: Simplify right side
    448,854.35x = 170,027,553,359.40
  5. Step 5: Solve for x
    x = 170,027,553,359.40/448,854.35
  6. Step 6: Final answer
    x = 378,803.40

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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.