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Finding the Fourth Proportional to 543,274,389.20, 814,911,583.80 and 543,274,389.20

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Solution

The fourth proportional to 543,274,389.20, 814,911,583.80 and 543,274,389.20 is: 814,911,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,274,389.20 : 814,911,583.80 = 543,274,389.20 : x
  2. Step 2: Convert to fraction form
    543,274,389.20/814,911,583.80 = 543,274,389.20/x
  3. Step 3: Cross multiply
    543,274,389.20x = 814,911,583.80 × 543,274,389.20
  4. Step 4: Simplify right side
    543,274,389.20x = 442,720,592,940,949,632
  5. Step 5: Solve for x
    x = 442,720,592,940,949,632/543,274,389.20
  6. Step 6: Final answer
    x = 814,911,583.80

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1.5x scale

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.