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Finding the Fourth Proportional to 291,800.07, 402,684.09 and 157,664.07

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Solution

The fourth proportional to 291,800.07, 402,684.09 and 157,664.07 is: 217,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,800.07 : 402,684.09 = 157,664.07 : x
  2. Step 2: Convert to fraction form
    291,800.07/402,684.09 = 157,664.07/x
  3. Step 3: Cross multiply
    291,800.07x = 402,684.09 × 157,664.07
  4. Step 4: Simplify right side
    291,800.07x = 63,488,812,553.65
  5. Step 5: Solve for x
    x = 63,488,812,553.65/291,800.07
  6. Step 6: Final answer
    x = 217,576.41

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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.