Home / 766,172.52-1,056,381.21-479,194.38

Finding the Fourth Proportional to 766,172.52, 1,056,381.21 and 479,194.38

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Solution

The fourth proportional to 766,172.52, 1,056,381.21 and 479,194.38 is: 660,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,172.52 : 1,056,381.21 = 479,194.38 : x
  2. Step 2: Convert to fraction form
    766,172.52/1,056,381.21 = 479,194.38/x
  3. Step 3: Cross multiply
    766,172.52x = 1,056,381.21 × 479,194.38
  4. Step 4: Simplify right side
    766,172.52x = 506,211,938,969.60
  5. Step 5: Solve for x
    x = 506,211,938,969.60/766,172.52
  6. Step 6: Final answer
    x = 660,702.29

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Double scale
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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.