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Finding the Fourth Proportional to 1,692,581.54, 2,334,006.40 and 1,448,374.40

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Solution

The fourth proportional to 1,692,581.54, 2,334,006.40 and 1,448,374.40 is: 1,997,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,581.54 : 2,334,006.40 = 1,448,374.40 : x
  2. Step 2: Convert to fraction form
    1,692,581.54/2,334,006.40 = 1,448,374.40/x
  3. Step 3: Cross multiply
    1,692,581.54x = 2,334,006.40 × 1,448,374.40
  4. Step 4: Simplify right side
    1,692,581.54x = 3,380,515,119,196.16
  5. Step 5: Solve for x
    x = 3,380,515,119,196.16/1,692,581.54
  6. Step 6: Final answer
    x = 1,997,253.92

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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.