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Finding the Fourth Proportional to 492,232.72, 679,281.12 and 265,878.22

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Solution

The fourth proportional to 492,232.72, 679,281.12 and 265,878.22 is: 366,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,232.72 : 679,281.12 = 265,878.22 : x
  2. Step 2: Convert to fraction form
    492,232.72/679,281.12 = 265,878.22/x
  3. Step 3: Cross multiply
    492,232.72x = 679,281.12 × 265,878.22
  4. Step 4: Simplify right side
    492,232.72x = 180,606,055,065.21
  5. Step 5: Solve for x
    x = 180,606,055,065.21/492,232.72
  6. Step 6: Final answer
    x = 366,911.93

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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.