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Finding the Fourth Proportional to 674,806.76, 931,285.86 and 373,028.84

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Solution

The fourth proportional to 674,806.76, 931,285.86 and 373,028.84 is: 514,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,806.76 : 931,285.86 = 373,028.84 : x
  2. Step 2: Convert to fraction form
    674,806.76/931,285.86 = 373,028.84/x
  3. Step 3: Cross multiply
    674,806.76x = 931,285.86 × 373,028.84
  4. Step 4: Simplify right side
    674,806.76x = 347,396,484,064.20
  5. Step 5: Solve for x
    x = 347,396,484,064.20/674,806.76
  6. Step 6: Final answer
    x = 514,808.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.