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Finding the Fourth Proportional to 585,582.40, 878,397.90 and 186,211.90

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Solution

The fourth proportional to 585,582.40, 878,397.90 and 186,211.90 is: 279,325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,582.40 : 878,397.90 = 186,211.90 : x
  2. Step 2: Convert to fraction form
    585,582.40/878,397.90 = 186,211.90/x
  3. Step 3: Cross multiply
    585,582.40x = 878,397.90 × 186,211.90
  4. Step 4: Simplify right side
    585,582.40x = 163,568,141,915.01
  5. Step 5: Solve for x
    x = 163,568,141,915.01/585,582.40
  6. Step 6: Final answer
    x = 279,325.58

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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.