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Finding the Fourth Proportional to 303,746.10, 455,619.15 and 170,630.70

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Solution

The fourth proportional to 303,746.10, 455,619.15 and 170,630.70 is: 255,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,746.10 : 455,619.15 = 170,630.70 : x
  2. Step 2: Convert to fraction form
    303,746.10/455,619.15 = 170,630.70/x
  3. Step 3: Cross multiply
    303,746.10x = 455,619.15 × 170,630.70
  4. Step 4: Simplify right side
    303,746.10x = 77,742,614,497.91
  5. Step 5: Solve for x
    x = 77,742,614,497.91/303,746.10
  6. Step 6: Final answer
    x = 255,946.05

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Similar ratio
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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.