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Finding the Fourth Proportional to 405,555.34, 608,510.82 and 192,477.13

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Solution

The fourth proportional to 405,555.34, 608,510.82 and 192,477.13 is: 288,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,555.34 : 608,510.82 = 192,477.13 : x
  2. Step 2: Convert to fraction form
    405,555.34/608,510.82 = 192,477.13/x
  3. Step 3: Cross multiply
    405,555.34x = 608,510.82 × 192,477.13
  4. Step 4: Simplify right side
    405,555.34x = 117,124,416,207.55
  5. Step 5: Solve for x
    x = 117,124,416,207.55/405,555.34
  6. Step 6: Final answer
    x = 288,800.08

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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.