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Finding the Fourth Proportional to 450,325.47, 675,570.05 and 213,665.95

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Solution

The fourth proportional to 450,325.47, 675,570.05 and 213,665.95 is: 320,537.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,325.47 : 675,570.05 = 213,665.95 : x
  2. Step 2: Convert to fraction form
    450,325.47/675,570.05 = 213,665.95/x
  3. Step 3: Cross multiply
    450,325.47x = 675,570.05 × 213,665.95
  4. Step 4: Simplify right side
    450,325.47x = 144,346,316,524.80
  5. Step 5: Solve for x
    x = 144,346,316,524.80/450,325.47
  6. Step 6: Final answer
    x = 320,537.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.