Home / 832,005.12-1,245,558.24-515,444.16

Finding the Fourth Proportional to 832,005.12, 1,245,558.24 and 515,444.16

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Solution

The fourth proportional to 832,005.12, 1,245,558.24 and 515,444.16 is: 771,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,005.12 : 1,245,558.24 = 515,444.16 : x
  2. Step 2: Convert to fraction form
    832,005.12/1,245,558.24 = 515,444.16/x
  3. Step 3: Cross multiply
    832,005.12x = 1,245,558.24 × 515,444.16
  4. Step 4: Simplify right side
    832,005.12x = 642,015,720,747.88
  5. Step 5: Solve for x
    x = 642,015,720,747.88/832,005.12
  6. Step 6: Final answer
    x = 771,648.76

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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.