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Finding the Fourth Proportional to 614,481,475.20, 921,722,212.80 and 614,481,475.20

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Solution

The fourth proportional to 614,481,475.20, 921,722,212.80 and 614,481,475.20 is: 921,722,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,481,475.20 : 921,722,212.80 = 614,481,475.20 : x
  2. Step 2: Convert to fraction form
    614,481,475.20/921,722,212.80 = 614,481,475.20/x
  3. Step 3: Cross multiply
    614,481,475.20x = 921,722,212.80 × 614,481,475.20
  4. Step 4: Simplify right side
    614,481,475.20x = 566,381,225,045,952,320
  5. Step 5: Solve for x
    x = 566,381,225,045,952,320/614,481,475.20
  6. Step 6: Final answer
    x = 921,722,212.80

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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.