Home / 638,128.96-957,193.60-188,815.04

Finding the Fourth Proportional to 638,128.96, 957,193.60 and 188,815.04

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Solution

The fourth proportional to 638,128.96, 957,193.60 and 188,815.04 is: 283,222.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,128.96 : 957,193.60 = 188,815.04 : x
  2. Step 2: Convert to fraction form
    638,128.96/957,193.60 = 188,815.04/x
  3. Step 3: Cross multiply
    638,128.96x = 957,193.60 × 188,815.04
  4. Step 4: Simplify right side
    638,128.96x = 180,732,547,871.74
  5. Step 5: Solve for x
    x = 180,732,547,871.74/638,128.96
  6. Step 6: Final answer
    x = 283,222.61

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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.