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Finding the Fourth Proportional to 446,176.60, 669,264.90 and 425,440.60

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Solution

The fourth proportional to 446,176.60, 669,264.90 and 425,440.60 is: 638,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,176.60 : 669,264.90 = 425,440.60 : x
  2. Step 2: Convert to fraction form
    446,176.60/669,264.90 = 425,440.60/x
  3. Step 3: Cross multiply
    446,176.60x = 669,264.90 × 425,440.60
  4. Step 4: Simplify right side
    446,176.60x = 284,732,460,614.94
  5. Step 5: Solve for x
    x = 284,732,460,614.94/446,176.60
  6. Step 6: Final answer
    x = 638,160.90

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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.