Home / 861,410.82-1,189,008.38-498,923.67

Finding the Fourth Proportional to 861,410.82, 1,189,008.38 and 498,923.67

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Solution

The fourth proportional to 861,410.82, 1,189,008.38 and 498,923.67 is: 688,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,410.82 : 1,189,008.38 = 498,923.67 : x
  2. Step 2: Convert to fraction form
    861,410.82/1,189,008.38 = 498,923.67/x
  3. Step 3: Cross multiply
    861,410.82x = 1,189,008.38 × 498,923.67
  4. Step 4: Simplify right side
    861,410.82x = 593,224,424,610.36
  5. Step 5: Solve for x
    x = 593,224,424,610.36/861,410.82
  6. Step 6: Final answer
    x = 688,666.09

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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.