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Finding the Fourth Proportional to 585,628.80, 878,443.20 and 522,643.20

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Solution

The fourth proportional to 585,628.80, 878,443.20 and 522,643.20 is: 783,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,628.80 : 878,443.20 = 522,643.20 : x
  2. Step 2: Convert to fraction form
    585,628.80/878,443.20 = 522,643.20/x
  3. Step 3: Cross multiply
    585,628.80x = 878,443.20 × 522,643.20
  4. Step 4: Simplify right side
    585,628.80x = 459,112,365,066.24
  5. Step 5: Solve for x
    x = 459,112,365,066.24/585,628.80
  6. Step 6: Final answer
    x = 783,964.80

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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.