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Finding the Fourth Proportional to 548,586.84, 757,046.34 and 306,868.26

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Solution

The fourth proportional to 548,586.84, 757,046.34 and 306,868.26 is: 423,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,586.84 : 757,046.34 = 306,868.26 : x
  2. Step 2: Convert to fraction form
    548,586.84/757,046.34 = 306,868.26/x
  3. Step 3: Cross multiply
    548,586.84x = 757,046.34 × 306,868.26
  4. Step 4: Simplify right side
    548,586.84x = 232,313,493,095.17
  5. Step 5: Solve for x
    x = 232,313,493,095.17/548,586.84
  6. Step 6: Final answer
    x = 423,476.24

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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.