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Finding the Fourth Proportional to 554,305.70, 831,458.55 and 180,328.70

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Solution

The fourth proportional to 554,305.70, 831,458.55 and 180,328.70 is: 270,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,305.70 : 831,458.55 = 180,328.70 : x
  2. Step 2: Convert to fraction form
    554,305.70/831,458.55 = 180,328.70/x
  3. Step 3: Cross multiply
    554,305.70x = 831,458.55 × 180,328.70
  4. Step 4: Simplify right side
    554,305.70x = 149,935,839,425.39
  5. Step 5: Solve for x
    x = 149,935,839,425.39/554,305.70
  6. Step 6: Final answer
    x = 270,493.05

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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.