Home / 729,077.10-1,021,757.70-729,077.10

Finding the Fourth Proportional to 729,077.10, 1,021,757.70 and 729,077.10

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Solution

The fourth proportional to 729,077.10, 1,021,757.70 and 729,077.10 is: 1,021,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,077.10 : 1,021,757.70 = 729,077.10 : x
  2. Step 2: Convert to fraction form
    729,077.10/1,021,757.70 = 729,077.10/x
  3. Step 3: Cross multiply
    729,077.10x = 1,021,757.70 × 729,077.10
  4. Step 4: Simplify right side
    729,077.10x = 744,940,140,818.67
  5. Step 5: Solve for x
    x = 744,940,140,818.67/729,077.10
  6. Step 6: Final answer
    x = 1,021,757.70

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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.