Home / 669,162.21-923,219.01-427,586.19

Finding the Fourth Proportional to 669,162.21, 923,219.01 and 427,586.19

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Solution

The fourth proportional to 669,162.21, 923,219.01 and 427,586.19 is: 589,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,162.21 : 923,219.01 = 427,586.19 : x
  2. Step 2: Convert to fraction form
    669,162.21/923,219.01 = 427,586.19/x
  3. Step 3: Cross multiply
    669,162.21x = 923,219.01 × 427,586.19
  4. Step 4: Simplify right side
    669,162.21x = 394,755,699,021.47
  5. Step 5: Solve for x
    x = 394,755,699,021.47/669,162.21
  6. Step 6: Final answer
    x = 589,925.27

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Half scale
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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.