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Finding the Fourth Proportional to 878,776.80, 1,315,054.80 and 598,840.80

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Solution

The fourth proportional to 878,776.80, 1,315,054.80 and 598,840.80 is: 896,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,776.80 : 1,315,054.80 = 598,840.80 : x
  2. Step 2: Convert to fraction form
    878,776.80/1,315,054.80 = 598,840.80/x
  3. Step 3: Cross multiply
    878,776.80x = 1,315,054.80 × 598,840.80
  4. Step 4: Simplify right side
    878,776.80x = 787,508,468,475.84
  5. Step 5: Solve for x
    x = 787,508,468,475.84/878,776.80
  6. Step 6: Final answer
    x = 896,141.62

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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.