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Finding the Fourth Proportional to 674,230.80, 1,010,665.80 and 336,752.40

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Solution

The fourth proportional to 674,230.80, 1,010,665.80 and 336,752.40 is: 504,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,230.80 : 1,010,665.80 = 336,752.40 : x
  2. Step 2: Convert to fraction form
    674,230.80/1,010,665.80 = 336,752.40/x
  3. Step 3: Cross multiply
    674,230.80x = 1,010,665.80 × 336,752.40
  4. Step 4: Simplify right side
    674,230.80x = 340,344,133,747.92
  5. Step 5: Solve for x
    x = 340,344,133,747.92/674,230.80
  6. Step 6: Final answer
    x = 504,788.77

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Double scale
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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.