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Finding the Fourth Proportional to 432,054.70, 648,082.05 and 274,461.10

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Solution

The fourth proportional to 432,054.70, 648,082.05 and 274,461.10 is: 411,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,054.70 : 648,082.05 = 274,461.10 : x
  2. Step 2: Convert to fraction form
    432,054.70/648,082.05 = 274,461.10/x
  3. Step 3: Cross multiply
    432,054.70x = 648,082.05 × 274,461.10
  4. Step 4: Simplify right side
    432,054.70x = 177,873,312,333.26
  5. Step 5: Solve for x
    x = 177,873,312,333.26/432,054.70
  6. Step 6: Final answer
    x = 411,691.65

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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.