Home / 314,919.52-434,458.09-185,806.75

Finding the Fourth Proportional to 314,919.52, 434,458.09 and 185,806.75

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Solution

The fourth proportional to 314,919.52, 434,458.09 and 185,806.75 is: 256,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,919.52 : 434,458.09 = 185,806.75 : x
  2. Step 2: Convert to fraction form
    314,919.52/434,458.09 = 185,806.75/x
  3. Step 3: Cross multiply
    314,919.52x = 434,458.09 × 185,806.75
  4. Step 4: Simplify right side
    314,919.52x = 80,725,245,714.11
  5. Step 5: Solve for x
    x = 80,725,245,714.11/314,919.52
  6. Step 6: Final answer
    x = 256,336.11

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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.