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Finding the Fourth Proportional to 524,102.40, 786,153.60 and 356,140.80

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Solution

The fourth proportional to 524,102.40, 786,153.60 and 356,140.80 is: 534,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,102.40 : 786,153.60 = 356,140.80 : x
  2. Step 2: Convert to fraction form
    524,102.40/786,153.60 = 356,140.80/x
  3. Step 3: Cross multiply
    524,102.40x = 786,153.60 × 356,140.80
  4. Step 4: Simplify right side
    524,102.40x = 279,981,372,026.88
  5. Step 5: Solve for x
    x = 279,981,372,026.88/524,102.40
  6. Step 6: Final answer
    x = 534,211.20

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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.