Home / 939,804,742.20-1,296,854,629.07-543,353,285.31

Finding the Fourth Proportional to 939,804,742.20, 1,296,854,629.07 and 543,353,285.31

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Solution

The fourth proportional to 939,804,742.20, 1,296,854,629.07 and 543,353,285.31 is: 749,783,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,804,742.20 : 1,296,854,629.07 = 543,353,285.31 : x
  2. Step 2: Convert to fraction form
    939,804,742.20/1,296,854,629.07 = 543,353,285.31/x
  3. Step 3: Cross multiply
    939,804,742.20x = 1,296,854,629.07 × 543,353,285.31
  4. Step 4: Simplify right side
    939,804,742.20x = 704,650,223,274,665,856
  5. Step 5: Solve for x
    x = 704,650,223,274,665,856/939,804,742.20
  6. Step 6: Final answer
    x = 749,783,642.96

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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.