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Finding the Fourth Proportional to 702,219.72, 969,062.86 and 396,360.30

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Solution

The fourth proportional to 702,219.72, 969,062.86 and 396,360.30 is: 546,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,219.72 : 969,062.86 = 396,360.30 : x
  2. Step 2: Convert to fraction form
    702,219.72/969,062.86 = 396,360.30/x
  3. Step 3: Cross multiply
    702,219.72x = 969,062.86 × 396,360.30
  4. Step 4: Simplify right side
    702,219.72x = 384,098,045,908.46
  5. Step 5: Solve for x
    x = 384,098,045,908.46/702,219.72
  6. Step 6: Final answer
    x = 546,977.01

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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.