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Finding the Fourth Proportional to 483,318.80, 666,990.51 and 265,530.28

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Solution

The fourth proportional to 483,318.80, 666,990.51 and 265,530.28 is: 366,437.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,318.80 : 666,990.51 = 265,530.28 : x
  2. Step 2: Convert to fraction form
    483,318.80/666,990.51 = 265,530.28/x
  3. Step 3: Cross multiply
    483,318.80x = 666,990.51 × 265,530.28
  4. Step 4: Simplify right side
    483,318.80x = 177,106,176,877.64
  5. Step 5: Solve for x
    x = 177,106,176,877.64/483,318.80
  6. Step 6: Final answer
    x = 366,437.59

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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.