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Finding the Fourth Proportional to 472,392,938.20, 708,589,407.30 and 472,392,938.20

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Solution

The fourth proportional to 472,392,938.20, 708,589,407.30 and 472,392,938.20 is: 708,589,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,938.20 : 708,589,407.30 = 472,392,938.20 : x
  2. Step 2: Convert to fraction form
    472,392,938.20/708,589,407.30 = 472,392,938.20/x
  3. Step 3: Cross multiply
    472,392,938.20x = 708,589,407.30 × 472,392,938.20
  4. Step 4: Simplify right side
    472,392,938.20x = 334,732,632,091,843,520
  5. Step 5: Solve for x
    x = 334,732,632,091,843,520/472,392,938.20
  6. Step 6: Final answer
    x = 708,589,407.30

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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.