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Finding the Fourth Proportional to 612,818.92, 845,592.42 and 371,060.20

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Solution

The fourth proportional to 612,818.92, 845,592.42 and 371,060.20 is: 512,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,818.92 : 845,592.42 = 371,060.20 : x
  2. Step 2: Convert to fraction form
    612,818.92/845,592.42 = 371,060.20/x
  3. Step 3: Cross multiply
    612,818.92x = 845,592.42 × 371,060.20
  4. Step 4: Simplify right side
    612,818.92x = 313,765,692,483.68
  5. Step 5: Solve for x
    x = 313,765,692,483.68/612,818.92
  6. Step 6: Final answer
    x = 512,003.93

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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.