Home / 296,683.10-445,036.94-86,321.04

Finding the Fourth Proportional to 296,683.10, 445,036.94 and 86,321.04

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Solution

The fourth proportional to 296,683.10, 445,036.94 and 86,321.04 is: 129,485.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,683.10 : 445,036.94 = 86,321.04 : x
  2. Step 2: Convert to fraction form
    296,683.10/445,036.94 = 86,321.04/x
  3. Step 3: Cross multiply
    296,683.10x = 445,036.94 × 86,321.04
  4. Step 4: Simplify right side
    296,683.10x = 38,416,051,499.22
  5. Step 5: Solve for x
    x = 38,416,051,499.22/296,683.10
  6. Step 6: Final answer
    x = 129,485.14

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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.