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Finding the Fourth Proportional to 839,864.34, 1,159,019.58 and 457,893.90

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Solution

The fourth proportional to 839,864.34, 1,159,019.58 and 457,893.90 is: 631,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,864.34 : 1,159,019.58 = 457,893.90 : x
  2. Step 2: Convert to fraction form
    839,864.34/1,159,019.58 = 457,893.90/x
  3. Step 3: Cross multiply
    839,864.34x = 1,159,019.58 × 457,893.90
  4. Step 4: Simplify right side
    839,864.34x = 530,707,995,662.56
  5. Step 5: Solve for x
    x = 530,707,995,662.56/839,864.34
  6. Step 6: Final answer
    x = 631,897.28

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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.