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Finding the Fourth Proportional to 619,279,742.20, 928,919,613.30 and 595,471,185.40

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Solution

The fourth proportional to 619,279,742.20, 928,919,613.30 and 595,471,185.40 is: 893,206,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,279,742.20 : 928,919,613.30 = 595,471,185.40 : x
  2. Step 2: Convert to fraction form
    619,279,742.20/928,919,613.30 = 595,471,185.40/x
  3. Step 3: Cross multiply
    619,279,742.20x = 928,919,613.30 × 595,471,185.40
  4. Step 4: Simplify right side
    619,279,742.20x = 553,144,863,273,060,544
  5. Step 5: Solve for x
    x = 553,144,863,273,060,544/619,279,742.20
  6. Step 6: Final answer
    x = 893,206,778.10

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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.