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Finding the Fourth Proportional to 585,980.80, 876,638.40 and 507,961.60

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Solution

The fourth proportional to 585,980.80, 876,638.40 and 507,961.60 is: 759,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,980.80 : 876,638.40 = 507,961.60 : x
  2. Step 2: Convert to fraction form
    585,980.80/876,638.40 = 507,961.60/x
  3. Step 3: Cross multiply
    585,980.80x = 876,638.40 × 507,961.60
  4. Step 4: Simplify right side
    585,980.80x = 445,298,644,285.44
  5. Step 5: Solve for x
    x = 445,298,644,285.44/585,980.80
  6. Step 6: Final answer
    x = 759,920.20

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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.