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Finding the Fourth Proportional to 468,318.80, 646,281.84 and 253,458.81

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Solution

The fourth proportional to 468,318.80, 646,281.84 and 253,458.81 is: 349,774.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,318.80 : 646,281.84 = 253,458.81 : x
  2. Step 2: Convert to fraction form
    468,318.80/646,281.84 = 253,458.81/x
  3. Step 3: Cross multiply
    468,318.80x = 646,281.84 × 253,458.81
  4. Step 4: Simplify right side
    468,318.80x = 163,805,826,091.01
  5. Step 5: Solve for x
    x = 163,805,826,091.01/468,318.80
  6. Step 6: Final answer
    x = 349,774.19

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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.