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Finding the Fourth Proportional to 492,117.53, 679,122.20 and 265,763.03

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Solution

The fourth proportional to 492,117.53, 679,122.20 and 265,763.03 is: 366,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,117.53 : 679,122.20 = 265,763.03 : x
  2. Step 2: Convert to fraction form
    492,117.53/679,122.20 = 265,763.03/x
  3. Step 3: Cross multiply
    492,117.53x = 679,122.20 × 265,763.03
  4. Step 4: Simplify right side
    492,117.53x = 180,485,570,216.66
  5. Step 5: Solve for x
    x = 180,485,570,216.66/492,117.53
  6. Step 6: Final answer
    x = 366,752.98

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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.