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Finding the Fourth Proportional to 863,006.66, 1,297,347.86 and 800,580.40

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Solution

The fourth proportional to 863,006.66, 1,297,347.86 and 800,580.40 is: 1,203,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,006.66 : 1,297,347.86 = 800,580.40 : x
  2. Step 2: Convert to fraction form
    863,006.66/1,297,347.86 = 800,580.40/x
  3. Step 3: Cross multiply
    863,006.66x = 1,297,347.86 × 800,580.40
  4. Step 4: Simplify right side
    863,006.66x = 1,038,631,268,697.94
  5. Step 5: Solve for x
    x = 1,038,631,268,697.94/863,006.66
  6. Step 6: Final answer
    x = 1,203,503.19

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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.