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Finding the Fourth Proportional to 603,676,378.70, 905,514,568.05 and 603,676,378.70

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Solution

The fourth proportional to 603,676,378.70, 905,514,568.05 and 603,676,378.70 is: 905,514,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,676,378.70 : 905,514,568.05 = 603,676,378.70 : x
  2. Step 2: Convert to fraction form
    603,676,378.70/905,514,568.05 = 603,676,378.70/x
  3. Step 3: Cross multiply
    603,676,378.70x = 905,514,568.05 × 603,676,378.70
  4. Step 4: Simplify right side
    603,676,378.70x = 546,637,755,300,518,720
  5. Step 5: Solve for x
    x = 546,637,755,300,518,720/603,676,378.70
  6. Step 6: Final answer
    x = 905,514,568.05

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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.