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Finding the Fourth Proportional to 385,624.48, 579,324.72 and 273,582.88

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Solution

The fourth proportional to 385,624.48, 579,324.72 and 273,582.88 is: 411,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,624.48 : 579,324.72 = 273,582.88 : x
  2. Step 2: Convert to fraction form
    385,624.48/579,324.72 = 273,582.88/x
  3. Step 3: Cross multiply
    385,624.48x = 579,324.72 × 273,582.88
  4. Step 4: Simplify right side
    385,624.48x = 158,493,325,352.79
  5. Step 5: Solve for x
    x = 158,493,325,352.79/385,624.48
  6. Step 6: Final answer
    x = 411,004.32

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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.