Home / 1,692,663.40-2,335,878.30-928,722.43

Finding the Fourth Proportional to 1,692,663.40, 2,335,878.30 and 928,722.43

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Solution

The fourth proportional to 1,692,663.40, 2,335,878.30 and 928,722.43 is: 1,281,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,663.40 : 2,335,878.30 = 928,722.43 : x
  2. Step 2: Convert to fraction form
    1,692,663.40/2,335,878.30 = 928,722.43/x
  3. Step 3: Cross multiply
    1,692,663.40x = 2,335,878.30 × 928,722.43
  4. Step 4: Simplify right side
    1,692,663.40x = 2,169,382,570,960.27
  5. Step 5: Solve for x
    x = 2,169,382,570,960.27/1,692,663.40
  6. Step 6: Final answer
    x = 1,281,638.49

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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.