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Finding the Fourth Proportional to 547,775.60, 821,663.40 and 173,836.40

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Solution

The fourth proportional to 547,775.60, 821,663.40 and 173,836.40 is: 260,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,775.60 : 821,663.40 = 173,836.40 : x
  2. Step 2: Convert to fraction form
    547,775.60/821,663.40 = 173,836.40/x
  3. Step 3: Cross multiply
    547,775.60x = 821,663.40 × 173,836.40
  4. Step 4: Simplify right side
    547,775.60x = 142,835,007,467.76
  5. Step 5: Solve for x
    x = 142,835,007,467.76/547,775.60
  6. Step 6: Final answer
    x = 260,754.60

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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.