Home / 719,309.03-992,575.73-396,998.36

Finding the Fourth Proportional to 719,309.03, 992,575.73 and 396,998.36

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Solution

The fourth proportional to 719,309.03, 992,575.73 and 396,998.36 is: 547,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,309.03 : 992,575.73 = 396,998.36 : x
  2. Step 2: Convert to fraction form
    719,309.03/992,575.73 = 396,998.36/x
  3. Step 3: Cross multiply
    719,309.03x = 992,575.73 × 396,998.36
  4. Step 4: Simplify right side
    719,309.03x = 394,050,930,037.93
  5. Step 5: Solve for x
    x = 394,050,930,037.93/719,309.03
  6. Step 6: Final answer
    x = 547,818.69

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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.