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Finding the Fourth Proportional to 709,544.80, 1,064,662.80 and 541,007.20

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Solution

The fourth proportional to 709,544.80, 1,064,662.80 and 541,007.20 is: 811,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,544.80 : 1,064,662.80 = 541,007.20 : x
  2. Step 2: Convert to fraction form
    709,544.80/1,064,662.80 = 541,007.20/x
  3. Step 3: Cross multiply
    709,544.80x = 1,064,662.80 × 541,007.20
  4. Step 4: Simplify right side
    709,544.80x = 575,990,240,372.16
  5. Step 5: Solve for x
    x = 575,990,240,372.16/709,544.80
  6. Step 6: Final answer
    x = 811,774.31

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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.