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Finding the Fourth Proportional to 452,486.49, 677,945.75 and 274,620.81

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Solution

The fourth proportional to 452,486.49, 677,945.75 and 274,620.81 is: 411,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,486.49 : 677,945.75 = 274,620.81 : x
  2. Step 2: Convert to fraction form
    452,486.49/677,945.75 = 274,620.81/x
  3. Step 3: Cross multiply
    452,486.49x = 677,945.75 × 274,620.81
  4. Step 4: Simplify right side
    452,486.49x = 186,178,009,627.95
  5. Step 5: Solve for x
    x = 186,178,009,627.95/452,486.49
  6. Step 6: Final answer
    x = 411,455.40

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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.