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Finding the Fourth Proportional to 653,996.40, 979,698.60 and 576,063.60

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Solution

The fourth proportional to 653,996.40, 979,698.60 and 576,063.60 is: 862,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,996.40 : 979,698.60 = 576,063.60 : x
  2. Step 2: Convert to fraction form
    653,996.40/979,698.60 = 576,063.60/x
  3. Step 3: Cross multiply
    653,996.40x = 979,698.60 × 576,063.60
  4. Step 4: Simplify right side
    653,996.40x = 564,368,702,430.96
  5. Step 5: Solve for x
    x = 564,368,702,430.96/653,996.40
  6. Step 6: Final answer
    x = 862,953.84

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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.