Home / 856,077.81-1,181,399.76-493,495.08

Finding the Fourth Proportional to 856,077.81, 1,181,399.76 and 493,495.08

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Solution

The fourth proportional to 856,077.81, 1,181,399.76 and 493,495.08 is: 681,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,077.81 : 1,181,399.76 = 493,495.08 : x
  2. Step 2: Convert to fraction form
    856,077.81/1,181,399.76 = 493,495.08/x
  3. Step 3: Cross multiply
    856,077.81x = 1,181,399.76 × 493,495.08
  4. Step 4: Simplify right side
    856,077.81x = 583,014,969,073.18
  5. Step 5: Solve for x
    x = 583,014,969,073.18/856,077.81
  6. Step 6: Final answer
    x = 681,030.35

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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.