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Finding the Fourth Proportional to 544,008.20, 816,012.30 and 488,712.20

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Solution

The fourth proportional to 544,008.20, 816,012.30 and 488,712.20 is: 733,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,008.20 : 816,012.30 = 488,712.20 : x
  2. Step 2: Convert to fraction form
    544,008.20/816,012.30 = 488,712.20/x
  3. Step 3: Cross multiply
    544,008.20x = 816,012.30 × 488,712.20
  4. Step 4: Simplify right side
    544,008.20x = 398,795,166,360.06
  5. Step 5: Solve for x
    x = 398,795,166,360.06/544,008.20
  6. Step 6: Final answer
    x = 733,068.30

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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.