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Finding the Fourth Proportional to 534,428.40, 801,642.60 and 254,492.40

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Solution

The fourth proportional to 534,428.40, 801,642.60 and 254,492.40 is: 381,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,428.40 : 801,642.60 = 254,492.40 : x
  2. Step 2: Convert to fraction form
    534,428.40/801,642.60 = 254,492.40/x
  3. Step 3: Cross multiply
    534,428.40x = 801,642.60 × 254,492.40
  4. Step 4: Simplify right side
    534,428.40x = 204,011,949,216.24
  5. Step 5: Solve for x
    x = 204,011,949,216.24/534,428.40
  6. Step 6: Final answer
    x = 381,738.60

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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.