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Finding the Fourth Proportional to 605,906.60, 908,276.70 and 470,895.80

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Solution

The fourth proportional to 605,906.60, 908,276.70 and 470,895.80 is: 705,890.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,906.60 : 908,276.70 = 470,895.80 : x
  2. Step 2: Convert to fraction form
    605,906.60/908,276.70 = 470,895.80/x
  3. Step 3: Cross multiply
    605,906.60x = 908,276.70 × 470,895.80
  4. Step 4: Simplify right side
    605,906.60x = 427,703,683,267.86
  5. Step 5: Solve for x
    x = 427,703,683,267.86/605,906.60
  6. Step 6: Final answer
    x = 705,890.45

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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.