Home / 317,977.85-438,713.74-190,606.97

Finding the Fourth Proportional to 317,977.85, 438,713.74 and 190,606.97

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Solution

The fourth proportional to 317,977.85, 438,713.74 and 190,606.97 is: 262,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,977.85 : 438,713.74 = 190,606.97 : x
  2. Step 2: Convert to fraction form
    317,977.85/438,713.74 = 190,606.97/x
  3. Step 3: Cross multiply
    317,977.85x = 438,713.74 × 190,606.97
  4. Step 4: Simplify right side
    317,977.85x = 83,621,896,678.77
  5. Step 5: Solve for x
    x = 83,621,896,678.77/317,977.85
  6. Step 6: Final answer
    x = 262,980.26

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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.