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Finding the Fourth Proportional to 608,897.20, 913,345.80 and 276,473.20

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Solution

The fourth proportional to 608,897.20, 913,345.80 and 276,473.20 is: 414,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,897.20 : 913,345.80 = 276,473.20 : x
  2. Step 2: Convert to fraction form
    608,897.20/913,345.80 = 276,473.20/x
  3. Step 3: Cross multiply
    608,897.20x = 913,345.80 × 276,473.20
  4. Step 4: Simplify right side
    608,897.20x = 252,515,636,032.56
  5. Step 5: Solve for x
    x = 252,515,636,032.56/608,897.20
  6. Step 6: Final answer
    x = 414,709.80

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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.