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Finding the Fourth Proportional to 784,564.70, 1,176,847.05 and 784,564.70

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Solution

The fourth proportional to 784,564.70, 1,176,847.05 and 784,564.70 is: 1,176,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,564.70 : 1,176,847.05 = 784,564.70 : x
  2. Step 2: Convert to fraction form
    784,564.70/1,176,847.05 = 784,564.70/x
  3. Step 3: Cross multiply
    784,564.70x = 1,176,847.05 × 784,564.70
  4. Step 4: Simplify right side
    784,564.70x = 923,312,652,729.14
  5. Step 5: Solve for x
    x = 923,312,652,729.14/784,564.70
  6. Step 6: Final answer
    x = 1,176,847.05

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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.