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Finding the Fourth Proportional to 581,322.40, 802,131.60 and 326,672.80

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Solution

The fourth proportional to 581,322.40, 802,131.60 and 326,672.80 is: 450,756.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,322.40 : 802,131.60 = 326,672.80 : x
  2. Step 2: Convert to fraction form
    581,322.40/802,131.60 = 326,672.80/x
  3. Step 3: Cross multiply
    581,322.40x = 802,131.60 × 326,672.80
  4. Step 4: Simplify right side
    581,322.40x = 262,034,575,740.48
  5. Step 5: Solve for x
    x = 262,034,575,740.48/581,322.40
  6. Step 6: Final answer
    x = 450,756.03

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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.