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Finding the Fourth Proportional to 3,315,703,621.80, 4,648,779,843 and 3,315,703,621.80

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Solution

The fourth proportional to 3,315,703,621.80, 4,648,779,843 and 3,315,703,621.80 is: 4,648,779,843

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,703,621.80 : 4,648,779,843 = 3,315,703,621.80 : x
  2. Step 2: Convert to fraction form
    3,315,703,621.80/4,648,779,843 = 3,315,703,621.80/x
  3. Step 3: Cross multiply
    3,315,703,621.80x = 4,648,779,843 × 3,315,703,621.80
  4. Step 4: Simplify right side
    3,315,703,621.80x = 15,413,976,162,385,936,384
  5. Step 5: Solve for x
    x = 15,413,976,162,385,936,384/3,315,703,621.80
  6. Step 6: Final answer
    x = 4,648,779,843

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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.