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Finding the Fourth Proportional to 804,412.80, 1,203,508.80 and 524,476.80

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Solution

The fourth proportional to 804,412.80, 1,203,508.80 and 524,476.80 is: 784,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,412.80 : 1,203,508.80 = 524,476.80 : x
  2. Step 2: Convert to fraction form
    804,412.80/1,203,508.80 = 524,476.80/x
  3. Step 3: Cross multiply
    804,412.80x = 1,203,508.80 × 524,476.80
  4. Step 4: Simplify right side
    804,412.80x = 631,212,444,195.84
  5. Step 5: Solve for x
    x = 631,212,444,195.84/804,412.80
  6. Step 6: Final answer
    x = 784,687.22

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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.