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Finding the Fourth Proportional to 473,239.53, 653,065.61 and 258,378.93

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Solution

The fourth proportional to 473,239.53, 653,065.61 and 258,378.93 is: 356,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,239.53 : 653,065.61 = 258,378.93 : x
  2. Step 2: Convert to fraction form
    473,239.53/653,065.61 = 258,378.93/x
  3. Step 3: Cross multiply
    473,239.53x = 653,065.61 × 258,378.93
  4. Step 4: Simplify right side
    473,239.53x = 168,738,392,239.70
  5. Step 5: Solve for x
    x = 168,738,392,239.70/473,239.53
  6. Step 6: Final answer
    x = 356,560.22

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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.