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Finding the Fourth Proportional to 1,411,516.53, 1,947,864.76 and 766,941.34

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Solution

The fourth proportional to 1,411,516.53, 1,947,864.76 and 766,941.34 is: 1,058,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,516.53 : 1,947,864.76 = 766,941.34 : x
  2. Step 2: Convert to fraction form
    1,411,516.53/1,947,864.76 = 766,941.34/x
  3. Step 3: Cross multiply
    1,411,516.53x = 1,947,864.76 × 766,941.34
  4. Step 4: Simplify right side
    1,411,516.53x = 1,493,898,004,874.09
  5. Step 5: Solve for x
    x = 1,493,898,004,874.09/1,411,516.53
  6. Step 6: Final answer
    x = 1,058,363.80

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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.