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Finding the Fourth Proportional to 1,368,483,649.86, 1,888,547,267.52 and 773,755,358.88

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Solution

The fourth proportional to 1,368,483,649.86, 1,888,547,267.52 and 773,755,358.88 is: 1,067,804,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,483,649.86 : 1,888,547,267.52 = 773,755,358.88 : x
  2. Step 2: Convert to fraction form
    1,368,483,649.86/1,888,547,267.52 = 773,755,358.88/x
  3. Step 3: Cross multiply
    1,368,483,649.86x = 1,888,547,267.52 × 773,755,358.88
  4. Step 4: Simplify right side
    1,368,483,649.86x = 1,461,273,568,741,780,992
  5. Step 5: Solve for x
    x = 1,461,273,568,741,780,992/1,368,483,649.86
  6. Step 6: Final answer
    x = 1,067,804,915.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.