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Finding the Fourth Proportional to 492,295.42, 679,368.29 and 265,940.92

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Solution

The fourth proportional to 492,295.42, 679,368.29 and 265,940.92 is: 366,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,295.42 : 679,368.29 = 265,940.92 : x
  2. Step 2: Convert to fraction form
    492,295.42/679,368.29 = 265,940.92/x
  3. Step 3: Cross multiply
    492,295.42x = 679,368.29 × 265,940.92
  4. Step 4: Simplify right side
    492,295.42x = 180,671,826,731.72
  5. Step 5: Solve for x
    x = 180,671,826,731.72/492,295.42
  6. Step 6: Final answer
    x = 366,998.80

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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.