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Finding the Fourth Proportional to 572,903.65, 858,946.70 and 269,128.27

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Solution

The fourth proportional to 572,903.65, 858,946.70 and 269,128.27 is: 403,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,903.65 : 858,946.70 = 269,128.27 : x
  2. Step 2: Convert to fraction form
    572,903.65/858,946.70 = 269,128.27/x
  3. Step 3: Cross multiply
    572,903.65x = 858,946.70 × 269,128.27
  4. Step 4: Simplify right side
    572,903.65x = 231,166,838,047.57
  5. Step 5: Solve for x
    x = 231,166,838,047.57/572,903.65
  6. Step 6: Final answer
    x = 403,500.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.