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Finding the Fourth Proportional to 568,862.51, 852,322.42 and 312,909.23

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Solution

The fourth proportional to 568,862.51, 852,322.42 and 312,909.23 is: 468,829.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,862.51 : 852,322.42 = 312,909.23 : x
  2. Step 2: Convert to fraction form
    568,862.51/852,322.42 = 312,909.23/x
  3. Step 3: Cross multiply
    568,862.51x = 852,322.42 × 312,909.23
  4. Step 4: Simplify right side
    568,862.51x = 266,699,548,121.45
  5. Step 5: Solve for x
    x = 266,699,548,121.45/568,862.51
  6. Step 6: Final answer
    x = 468,829.54

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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.