Home / 861,349.70-1,188,662.60-479,466.69

Finding the Fourth Proportional to 861,349.70, 1,188,662.60 and 479,466.69

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Solution

The fourth proportional to 861,349.70, 1,188,662.60 and 479,466.69 is: 661,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,349.70 : 1,188,662.60 = 479,466.69 : x
  2. Step 2: Convert to fraction form
    861,349.70/1,188,662.60 = 479,466.69/x
  3. Step 3: Cross multiply
    861,349.70x = 1,188,662.60 × 479,466.69
  4. Step 4: Simplify right side
    861,349.70x = 569,924,119,951.46
  5. Step 5: Solve for x
    x = 569,924,119,951.46/861,349.70
  6. Step 6: Final answer
    x = 661,664.04

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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.