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Finding the Fourth Proportional to 470,198,856.90, 705,298,285.35 and 470,198,856.90

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Solution

The fourth proportional to 470,198,856.90, 705,298,285.35 and 470,198,856.90 is: 705,298,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,198,856.90 : 705,298,285.35 = 470,198,856.90 : x
  2. Step 2: Convert to fraction form
    470,198,856.90/705,298,285.35 = 470,198,856.90/x
  3. Step 3: Cross multiply
    470,198,856.90x = 705,298,285.35 × 470,198,856.90
  4. Step 4: Simplify right side
    470,198,856.90x = 331,630,447,545,100,032
  5. Step 5: Solve for x
    x = 331,630,447,545,100,032/470,198,856.90
  6. Step 6: Final answer
    x = 705,298,285.35

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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.