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Finding the Fourth Proportional to 585,979.80, 876,636.90 and 507,960.60

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Solution

The fourth proportional to 585,979.80, 876,636.90 and 507,960.60 is: 759,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,979.80 : 876,636.90 = 507,960.60 : x
  2. Step 2: Convert to fraction form
    585,979.80/876,636.90 = 507,960.60/x
  3. Step 3: Cross multiply
    585,979.80x = 876,636.90 × 507,960.60
  4. Step 4: Simplify right side
    585,979.80x = 445,297,005,706.14
  5. Step 5: Solve for x
    x = 445,297,005,706.14/585,979.80
  6. Step 6: Final answer
    x = 759,918.70

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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.