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Finding the Fourth Proportional to 584,718.30, 806,891.67 and 330,126.30

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Solution

The fourth proportional to 584,718.30, 806,891.67 and 330,126.30 is: 455,563.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,718.30 : 806,891.67 = 330,126.30 : x
  2. Step 2: Convert to fraction form
    584,718.30/806,891.67 = 330,126.30/x
  3. Step 3: Cross multiply
    584,718.30x = 806,891.67 × 330,126.30
  4. Step 4: Simplify right side
    584,718.30x = 266,376,161,517.92
  5. Step 5: Solve for x
    x = 266,376,161,517.92/584,718.30
  6. Step 6: Final answer
    x = 455,563.24

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Double scale
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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.