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Finding the Fourth Proportional to 1,572,297.12, 2,169,498 and 927,668.64

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Solution

The fourth proportional to 1,572,297.12, 2,169,498 and 927,668.64 is: 1,280,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,297.12 : 2,169,498 = 927,668.64 : x
  2. Step 2: Convert to fraction form
    1,572,297.12/2,169,498 = 927,668.64/x
  3. Step 3: Cross multiply
    1,572,297.12x = 2,169,498 × 927,668.64
  4. Step 4: Simplify right side
    1,572,297.12x = 2,012,575,259,142.72
  5. Step 5: Solve for x
    x = 2,012,575,259,142.72/1,572,297.12
  6. Step 6: Final answer
    x = 1,280,022.23

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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.