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Finding the Fourth Proportional to 453,411.66, 625,283.31 and 281,357.54

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Solution

The fourth proportional to 453,411.66, 625,283.31 and 281,357.54 is: 388,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,411.66 : 625,283.31 = 281,357.54 : x
  2. Step 2: Convert to fraction form
    453,411.66/625,283.31 = 281,357.54/x
  3. Step 3: Cross multiply
    453,411.66x = 625,283.31 × 281,357.54
  4. Step 4: Simplify right side
    453,411.66x = 175,928,173,904.66
  5. Step 5: Solve for x
    x = 175,928,173,904.66/453,411.66
  6. Step 6: Final answer
    x = 388,009.81

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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.