Home / 530,721.64-796,128.60-170,928.70

Finding the Fourth Proportional to 530,721.64, 796,128.60 and 170,928.70

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Solution

The fourth proportional to 530,721.64, 796,128.60 and 170,928.70 is: 256,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,721.64 : 796,128.60 = 170,928.70 : x
  2. Step 2: Convert to fraction form
    530,721.64/796,128.60 = 170,928.70/x
  3. Step 3: Cross multiply
    530,721.64x = 796,128.60 × 170,928.70
  4. Step 4: Simplify right side
    530,721.64x = 136,081,226,630.82
  5. Step 5: Solve for x
    x = 136,081,226,630.82/530,721.64
  6. Step 6: Final answer
    x = 256,407.91

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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.