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Finding the Fourth Proportional to 450,574.08, 621,930.72 and 259,715.04

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Solution

The fourth proportional to 450,574.08, 621,930.72 and 259,715.04 is: 358,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,574.08 : 621,930.72 = 259,715.04 : x
  2. Step 2: Convert to fraction form
    450,574.08/621,930.72 = 259,715.04/x
  3. Step 3: Cross multiply
    450,574.08x = 621,930.72 × 259,715.04
  4. Step 4: Simplify right side
    450,574.08x = 161,524,761,822.03
  5. Step 5: Solve for x
    x = 161,524,761,822.03/450,574.08
  6. Step 6: Final answer
    x = 358,486.58

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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.