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Finding the Fourth Proportional to 486,048.40, 681,167.60 and 486,048.40

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Solution

The fourth proportional to 486,048.40, 681,167.60 and 486,048.40 is: 681,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,048.40 : 681,167.60 = 486,048.40 : x
  2. Step 2: Convert to fraction form
    486,048.40/681,167.60 = 486,048.40/x
  3. Step 3: Cross multiply
    486,048.40x = 681,167.60 × 486,048.40
  4. Step 4: Simplify right side
    486,048.40x = 331,080,422,111.84
  5. Step 5: Solve for x
    x = 331,080,422,111.84/486,048.40
  6. Step 6: Final answer
    x = 681,167.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.