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Finding the Fourth Proportional to 3,838,744,045.20, 5,381,497,604.40 and 3,838,744,045.20

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Solution

The fourth proportional to 3,838,744,045.20, 5,381,497,604.40 and 3,838,744,045.20 is: 5,381,497,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838,744,045.20 : 5,381,497,604.40 = 3,838,744,045.20 : x
  2. Step 2: Convert to fraction form
    3,838,744,045.20/5,381,497,604.40 = 3,838,744,045.20/x
  3. Step 3: Cross multiply
    3,838,744,045.20x = 5,381,497,604.40 × 3,838,744,045.20
  4. Step 4: Simplify right side
    3,838,744,045.20x = 20,658,191,883,148,562,432
  5. Step 5: Solve for x
    x = 20,658,191,883,148,562,432/3,838,744,045.20
  6. Step 6: Final answer
    x = 5,381,497,604.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.