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Finding the Fourth Proportional to 573,270.86, 789,746.28 and 400,866.41

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Solution

The fourth proportional to 573,270.86, 789,746.28 and 400,866.41 is: 552,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,270.86 : 789,746.28 = 400,866.41 : x
  2. Step 2: Convert to fraction form
    573,270.86/789,746.28 = 400,866.41/x
  3. Step 3: Cross multiply
    573,270.86x = 789,746.28 × 400,866.41
  4. Step 4: Simplify right side
    573,270.86x = 316,582,756,074.46
  5. Step 5: Solve for x
    x = 316,582,756,074.46/573,270.86
  6. Step 6: Final answer
    x = 552,239.40

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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.