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Finding the Fourth Proportional to 450,806.48, 621,357.08 and 359,870.96

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Solution

The fourth proportional to 450,806.48, 621,357.08 and 359,870.96 is: 496,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,806.48 : 621,357.08 = 359,870.96 : x
  2. Step 2: Convert to fraction form
    450,806.48/621,357.08 = 359,870.96/x
  3. Step 3: Cross multiply
    450,806.48x = 621,357.08 × 359,870.96
  4. Step 4: Simplify right side
    450,806.48x = 223,608,368,882.40
  5. Step 5: Solve for x
    x = 223,608,368,882.40/450,806.48
  6. Step 6: Final answer
    x = 496,018.53

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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.