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Finding the Fourth Proportional to 541,415.40, 812,123.10 and 373,453.80

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Solution

The fourth proportional to 541,415.40, 812,123.10 and 373,453.80 is: 560,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,415.40 : 812,123.10 = 373,453.80 : x
  2. Step 2: Convert to fraction form
    541,415.40/812,123.10 = 373,453.80/x
  3. Step 3: Cross multiply
    541,415.40x = 812,123.10 × 373,453.80
  4. Step 4: Simplify right side
    541,415.40x = 303,290,457,762.78
  5. Step 5: Solve for x
    x = 303,290,457,762.78/541,415.40
  6. Step 6: Final answer
    x = 560,180.70

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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.