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Finding the Fourth Proportional to 585,005.40, 876,195.90 and 480,029.40

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Solution

The fourth proportional to 585,005.40, 876,195.90 and 480,029.40 is: 718,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,005.40 : 876,195.90 = 480,029.40 : x
  2. Step 2: Convert to fraction form
    585,005.40/876,195.90 = 480,029.40/x
  3. Step 3: Cross multiply
    585,005.40x = 876,195.90 × 480,029.40
  4. Step 4: Simplify right side
    585,005.40x = 420,599,792,159.46
  5. Step 5: Solve for x
    x = 420,599,792,159.46/585,005.40
  6. Step 6: Final answer
    x = 718,967.37

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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.