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Finding the Fourth Proportional to 453,945.70, 680,918.55 and 276,798.70

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Solution

The fourth proportional to 453,945.70, 680,918.55 and 276,798.70 is: 415,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,945.70 : 680,918.55 = 276,798.70 : x
  2. Step 2: Convert to fraction form
    453,945.70/680,918.55 = 276,798.70/x
  3. Step 3: Cross multiply
    453,945.70x = 680,918.55 × 276,798.70
  4. Step 4: Simplify right side
    453,945.70x = 188,477,369,445.89
  5. Step 5: Solve for x
    x = 188,477,369,445.89/453,945.70
  6. Step 6: Final answer
    x = 415,198.05

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Similar ratio
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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.