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Finding the Fourth Proportional to 624,567.76, 861,853.30 and 352,701.80

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Solution

The fourth proportional to 624,567.76, 861,853.30 and 352,701.80 is: 486,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,567.76 : 861,853.30 = 352,701.80 : x
  2. Step 2: Convert to fraction form
    624,567.76/861,853.30 = 352,701.80/x
  3. Step 3: Cross multiply
    624,567.76x = 861,853.30 × 352,701.80
  4. Step 4: Simplify right side
    624,567.76x = 303,977,210,245.94
  5. Step 5: Solve for x
    x = 303,977,210,245.94/624,567.76
  6. Step 6: Final answer
    x = 486,700.13

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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.