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Finding the Fourth Proportional to 625,370.92, 863,014.98 and 353,487.40

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Solution

The fourth proportional to 625,370.92, 863,014.98 and 353,487.40 is: 487,814.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,370.92 : 863,014.98 = 353,487.40 : x
  2. Step 2: Convert to fraction form
    625,370.92/863,014.98 = 353,487.40/x
  3. Step 3: Cross multiply
    625,370.92x = 863,014.98 × 353,487.40
  4. Step 4: Simplify right side
    625,370.92x = 305,064,921,441.25
  5. Step 5: Solve for x
    x = 305,064,921,441.25/625,370.92
  6. Step 6: Final answer
    x = 487,814.37

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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.