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Finding the Fourth Proportional to 405,366.48, 559,269.36 and 262,307.52

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Solution

The fourth proportional to 405,366.48, 559,269.36 and 262,307.52 is: 361,896.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,366.48 : 559,269.36 = 262,307.52 : x
  2. Step 2: Convert to fraction form
    405,366.48/559,269.36 = 262,307.52/x
  3. Step 3: Cross multiply
    405,366.48x = 559,269.36 × 262,307.52
  4. Step 4: Simplify right side
    405,366.48x = 146,700,558,833.59
  5. Step 5: Solve for x
    x = 146,700,558,833.59/405,366.48
  6. Step 6: Final answer
    x = 361,896.13

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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.