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Finding the Fourth Proportional to 359,916.48, 496,385.28 and 269,485.92

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Solution

The fourth proportional to 359,916.48, 496,385.28 and 269,485.92 is: 371,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,916.48 : 496,385.28 = 269,485.92 : x
  2. Step 2: Convert to fraction form
    359,916.48/496,385.28 = 269,485.92/x
  3. Step 3: Cross multiply
    359,916.48x = 496,385.28 × 269,485.92
  4. Step 4: Simplify right side
    359,916.48x = 133,768,843,855.26
  5. Step 5: Solve for x
    x = 133,768,843,855.26/359,916.48
  6. Step 6: Final answer
    x = 371,666.35

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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.