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Finding the Fourth Proportional to 473,818.71, 653,868.25 and 258,958.71

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Solution

The fourth proportional to 473,818.71, 653,868.25 and 258,958.71 is: 357,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,818.71 : 653,868.25 = 258,958.71 : x
  2. Step 2: Convert to fraction form
    473,818.71/653,868.25 = 258,958.71/x
  3. Step 3: Cross multiply
    473,818.71x = 653,868.25 × 258,958.71
  4. Step 4: Simplify right side
    473,818.71x = 169,324,877,235.16
  5. Step 5: Solve for x
    x = 169,324,877,235.16/473,818.71
  6. Step 6: Final answer
    x = 357,362.16

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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.