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Finding the Fourth Proportional to 612,472.24, 845,250 and 340,600.96

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Solution

The fourth proportional to 612,472.24, 845,250 and 340,600.96 is: 470,050.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,472.24 : 845,250 = 340,600.96 : x
  2. Step 2: Convert to fraction form
    612,472.24/845,250 = 340,600.96/x
  3. Step 3: Cross multiply
    612,472.24x = 845,250 × 340,600.96
  4. Step 4: Simplify right side
    612,472.24x = 287,892,961,440
  5. Step 5: Solve for x
    x = 287,892,961,440/612,472.24
  6. Step 6: Final answer
    x = 470,050.63

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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.