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Finding the Fourth Proportional to 867,660.70, 1,301,685.45 and 335,134.30

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Solution

The fourth proportional to 867,660.70, 1,301,685.45 and 335,134.30 is: 502,776.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,660.70 : 1,301,685.45 = 335,134.30 : x
  2. Step 2: Convert to fraction form
    867,660.70/1,301,685.45 = 335,134.30/x
  3. Step 3: Cross multiply
    867,660.70x = 1,301,685.45 × 335,134.30
  4. Step 4: Simplify right side
    867,660.70x = 436,239,442,105.94
  5. Step 5: Solve for x
    x = 436,239,442,105.94/867,660.70
  6. Step 6: Final answer
    x = 502,776.54

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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.