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Finding the Fourth Proportional to 453,806.80, 680,710.20 and 304,507.60

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Solution

The fourth proportional to 453,806.80, 680,710.20 and 304,507.60 is: 456,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,806.80 : 680,710.20 = 304,507.60 : x
  2. Step 2: Convert to fraction form
    453,806.80/680,710.20 = 304,507.60/x
  3. Step 3: Cross multiply
    453,806.80x = 680,710.20 × 304,507.60
  4. Step 4: Simplify right side
    453,806.80x = 207,281,429,297.52
  5. Step 5: Solve for x
    x = 207,281,429,297.52/453,806.80
  6. Step 6: Final answer
    x = 456,761.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.