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Finding the Fourth Proportional to 839,674.35, 1,158,706.87 and 477,047.88

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Solution

The fourth proportional to 839,674.35, 1,158,706.87 and 477,047.88 is: 658,301.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,674.35 : 1,158,706.87 = 477,047.88 : x
  2. Step 2: Convert to fraction form
    839,674.35/1,158,706.87 = 477,047.88/x
  3. Step 3: Cross multiply
    839,674.35x = 1,158,706.87 × 477,047.88
  4. Step 4: Simplify right side
    839,674.35x = 552,758,655,874.94
  5. Step 5: Solve for x
    x = 552,758,655,874.94/839,674.35
  6. Step 6: Final answer
    x = 658,301.23

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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.