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Finding the Fourth Proportional to 1,894,772.34, 2,614,783.14 and 1,078,976.16

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Solution

The fourth proportional to 1,894,772.34, 2,614,783.14 and 1,078,976.16 is: 1,488,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894,772.34 : 2,614,783.14 = 1,078,976.16 : x
  2. Step 2: Convert to fraction form
    1,894,772.34/2,614,783.14 = 1,078,976.16/x
  3. Step 3: Cross multiply
    1,894,772.34x = 2,614,783.14 × 1,078,976.16
  4. Step 4: Simplify right side
    1,894,772.34x = 2,821,288,671,629.94
  5. Step 5: Solve for x
    x = 2,821,288,671,629.94/1,894,772.34
  6. Step 6: Final answer
    x = 1,488,985.57

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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.