Home / 669,144.46-923,420.16-363,220.68

Finding the Fourth Proportional to 669,144.46, 923,420.16 and 363,220.68

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Solution

The fourth proportional to 669,144.46, 923,420.16 and 363,220.68 is: 501,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,144.46 : 923,420.16 = 363,220.68 : x
  2. Step 2: Convert to fraction form
    669,144.46/923,420.16 = 363,220.68/x
  3. Step 3: Cross multiply
    669,144.46x = 923,420.16 × 363,220.68
  4. Step 4: Simplify right side
    669,144.46x = 335,405,298,440.91
  5. Step 5: Solve for x
    x = 335,405,298,440.91/669,144.46
  6. Step 6: Final answer
    x = 501,244.98

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Half scale
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Double scale
Find fourth proportional to 669,145.46, 923,421.54 and 363,221.68
Similar ratio
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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.