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Finding the Fourth Proportional to 902,658, 1,245,668.04 and 500,275.92

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Solution

The fourth proportional to 902,658, 1,245,668.04 and 500,275.92 is: 690,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,658 : 1,245,668.04 = 500,275.92 : x
  2. Step 2: Convert to fraction form
    902,658/1,245,668.04 = 500,275.92/x
  3. Step 3: Cross multiply
    902,658x = 1,245,668.04 × 500,275.92
  4. Step 4: Simplify right side
    902,658x = 623,177,724,725.60
  5. Step 5: Solve for x
    x = 623,177,724,725.60/902,658
  6. Step 6: Final answer
    x = 690,380.77

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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.