Home / 317,929.20-438,780.44-190,674.80

Finding the Fourth Proportional to 317,929.20, 438,780.44 and 190,674.80

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Solution

The fourth proportional to 317,929.20, 438,780.44 and 190,674.80 is: 263,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,929.20 : 438,780.44 = 190,674.80 : x
  2. Step 2: Convert to fraction form
    317,929.20/438,780.44 = 190,674.80/x
  3. Step 3: Cross multiply
    317,929.20x = 438,780.44 × 190,674.80
  4. Step 4: Simplify right side
    317,929.20x = 83,664,372,640.91
  5. Step 5: Solve for x
    x = 83,664,372,640.91/317,929.20
  6. Step 6: Final answer
    x = 263,154.10

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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.