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Finding the Fourth Proportional to 1,291,156, 1,937,045.04 and 404,692

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Solution

The fourth proportional to 1,291,156, 1,937,045.04 and 404,692 is: 607,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,156 : 1,937,045.04 = 404,692 : x
  2. Step 2: Convert to fraction form
    1,291,156/1,937,045.04 = 404,692/x
  3. Step 3: Cross multiply
    1,291,156x = 1,937,045.04 × 404,692
  4. Step 4: Simplify right side
    1,291,156x = 783,906,631,327.68
  5. Step 5: Solve for x
    x = 783,906,631,327.68/1,291,156
  6. Step 6: Final answer
    x = 607,135.49

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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.