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Finding the Fourth Proportional to 458,793.45, 686,877.98 and 458,793.45

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Solution

The fourth proportional to 458,793.45, 686,877.98 and 458,793.45 is: 686,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,793.45 : 686,877.98 = 458,793.45 : x
  2. Step 2: Convert to fraction form
    458,793.45/686,877.98 = 458,793.45/x
  3. Step 3: Cross multiply
    458,793.45x = 686,877.98 × 458,793.45
  4. Step 4: Simplify right side
    458,793.45x = 315,135,115,879.26
  5. Step 5: Solve for x
    x = 315,135,115,879.26/458,793.45
  6. Step 6: Final answer
    x = 686,877.98

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1.5x scale

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.