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Finding the Fourth Proportional to 522,082.30, 783,123.45 and 356,194.30

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Solution

The fourth proportional to 522,082.30, 783,123.45 and 356,194.30 is: 534,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,082.30 : 783,123.45 = 356,194.30 : x
  2. Step 2: Convert to fraction form
    522,082.30/783,123.45 = 356,194.30/x
  3. Step 3: Cross multiply
    522,082.30x = 783,123.45 × 356,194.30
  4. Step 4: Simplify right side
    522,082.30x = 278,944,109,086.34
  5. Step 5: Solve for x
    x = 278,944,109,086.34/522,082.30
  6. Step 6: Final answer
    x = 534,291.45

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Half scale
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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.