Home / 892,117.20-1,338,175.80-514,203.60

Finding the Fourth Proportional to 892,117.20, 1,338,175.80 and 514,203.60

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Solution

The fourth proportional to 892,117.20, 1,338,175.80 and 514,203.60 is: 771,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,117.20 : 1,338,175.80 = 514,203.60 : x
  2. Step 2: Convert to fraction form
    892,117.20/1,338,175.80 = 514,203.60/x
  3. Step 3: Cross multiply
    892,117.20x = 1,338,175.80 × 514,203.60
  4. Step 4: Simplify right side
    892,117.20x = 688,094,813,792.88
  5. Step 5: Solve for x
    x = 688,094,813,792.88/892,117.20
  6. Step 6: Final answer
    x = 771,305.40

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Double scale
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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.