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Finding the Fourth Proportional to 573,187.79, 789,632.04 and 400,783.17

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Solution

The fourth proportional to 573,187.79, 789,632.04 and 400,783.17 is: 552,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,187.79 : 789,632.04 = 400,783.17 : x
  2. Step 2: Convert to fraction form
    573,187.79/789,632.04 = 400,783.17/x
  3. Step 3: Cross multiply
    573,187.79x = 789,632.04 × 400,783.17
  4. Step 4: Simplify right side
    573,187.79x = 316,471,236,588.82
  5. Step 5: Solve for x
    x = 316,471,236,588.82/573,187.79
  6. Step 6: Final answer
    x = 552,124.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.