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Finding the Fourth Proportional to 576,020.40, 864,030.60 and 530,530.80

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Solution

The fourth proportional to 576,020.40, 864,030.60 and 530,530.80 is: 795,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,020.40 : 864,030.60 = 530,530.80 : x
  2. Step 2: Convert to fraction form
    576,020.40/864,030.60 = 530,530.80/x
  3. Step 3: Cross multiply
    576,020.40x = 864,030.60 × 530,530.80
  4. Step 4: Simplify right side
    576,020.40x = 458,394,845,442.48
  5. Step 5: Solve for x
    x = 458,394,845,442.48/576,020.40
  6. Step 6: Final answer
    x = 795,796.20

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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.