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Finding the Fourth Proportional to 695,937.06, 960,347.67 and 409,401.78

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Solution

The fourth proportional to 695,937.06, 960,347.67 and 409,401.78 is: 564,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,937.06 : 960,347.67 = 409,401.78 : x
  2. Step 2: Convert to fraction form
    695,937.06/960,347.67 = 409,401.78/x
  3. Step 3: Cross multiply
    695,937.06x = 960,347.67 × 409,401.78
  4. Step 4: Simplify right side
    695,937.06x = 393,168,045,516.85
  5. Step 5: Solve for x
    x = 393,168,045,516.85/695,937.06
  6. Step 6: Final answer
    x = 564,947.71

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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.