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Finding the Fourth Proportional to 572,544.52, 862,838.05 and 515,689.81

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Solution

The fourth proportional to 572,544.52, 862,838.05 and 515,689.81 is: 777,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,544.52 : 862,838.05 = 515,689.81 : x
  2. Step 2: Convert to fraction form
    572,544.52/862,838.05 = 515,689.81/x
  3. Step 3: Cross multiply
    572,544.52x = 862,838.05 × 515,689.81
  4. Step 4: Simplify right side
    572,544.52x = 444,956,790,065.27
  5. Step 5: Solve for x
    x = 444,956,790,065.27/572,544.52
  6. Step 6: Final answer
    x = 777,156.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.