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Finding the Fourth Proportional to 906,669,344.80, 1,360,339,940.40 and 873,077,024.80

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Solution

The fourth proportional to 906,669,344.80, 1,360,339,940.40 and 873,077,024.80 is: 1,309,939,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,669,344.80 : 1,360,339,940.40 = 873,077,024.80 : x
  2. Step 2: Convert to fraction form
    906,669,344.80/1,360,339,940.40 = 873,077,024.80/x
  3. Step 3: Cross multiply
    906,669,344.80x = 1,360,339,940.40 × 873,077,024.80
  4. Step 4: Simplify right side
    906,669,344.80x = 1,187,681,547,881,041,408
  5. Step 5: Solve for x
    x = 1,187,681,547,881,041,408/906,669,344.80
  6. Step 6: Final answer
    x = 1,309,939,014.36

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1.5x scale

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.