Home / 646,133.18-969,199.54-172,806.24

Finding the Fourth Proportional to 646,133.18, 969,199.54 and 172,806.24

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Solution

The fourth proportional to 646,133.18, 969,199.54 and 172,806.24 is: 259,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,133.18 : 969,199.54 = 172,806.24 : x
  2. Step 2: Convert to fraction form
    646,133.18/969,199.54 = 172,806.24/x
  3. Step 3: Cross multiply
    646,133.18x = 969,199.54 × 172,806.24
  4. Step 4: Simplify right side
    646,133.18x = 167,483,728,317.13
  5. Step 5: Solve for x
    x = 167,483,728,317.13/646,133.18
  6. Step 6: Final answer
    x = 259,209.30

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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.