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Finding the Fourth Proportional to 1,353,537, 1,867,880.80 and 809,695.72

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Solution

The fourth proportional to 1,353,537, 1,867,880.80 and 809,695.72 is: 1,117,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,537 : 1,867,880.80 = 809,695.72 : x
  2. Step 2: Convert to fraction form
    1,353,537/1,867,880.80 = 809,695.72/x
  3. Step 3: Cross multiply
    1,353,537x = 1,867,880.80 × 809,695.72
  4. Step 4: Simplify right side
    1,353,537x = 1,512,415,089,230.18
  5. Step 5: Solve for x
    x = 1,512,415,089,230.18/1,353,537
  6. Step 6: Final answer
    x = 1,117,379.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.