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Finding the Fourth Proportional to 473,287.92, 653,138.13 and 258,423.40

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Solution

The fourth proportional to 473,287.92, 653,138.13 and 258,423.40 is: 356,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,287.92 : 653,138.13 = 258,423.40 : x
  2. Step 2: Convert to fraction form
    473,287.92/653,138.13 = 258,423.40/x
  3. Step 3: Cross multiply
    473,287.92x = 653,138.13 × 258,423.40
  4. Step 4: Simplify right side
    473,287.92x = 168,786,176,224.24
  5. Step 5: Solve for x
    x = 168,786,176,224.24/473,287.92
  6. Step 6: Final answer
    x = 356,624.73

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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.