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Finding the Fourth Proportional to 483,421.68, 724,883.52 and 216,953.76

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Solution

The fourth proportional to 483,421.68, 724,883.52 and 216,953.76 is: 325,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,421.68 : 724,883.52 = 216,953.76 : x
  2. Step 2: Convert to fraction form
    483,421.68/724,883.52 = 216,953.76/x
  3. Step 3: Cross multiply
    483,421.68x = 724,883.52 × 216,953.76
  4. Step 4: Simplify right side
    483,421.68x = 157,266,205,226.04
  5. Step 5: Solve for x
    x = 157,266,205,226.04/483,421.68
  6. Step 6: Final answer
    x = 325,318.89

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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.