Home / 612,432.30-918,589.05-185,971.82

Finding the Fourth Proportional to 612,432.30, 918,589.05 and 185,971.82

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Solution

The fourth proportional to 612,432.30, 918,589.05 and 185,971.82 is: 278,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,432.30 : 918,589.05 = 185,971.82 : x
  2. Step 2: Convert to fraction form
    612,432.30/918,589.05 = 185,971.82/x
  3. Step 3: Cross multiply
    612,432.30x = 918,589.05 × 185,971.82
  4. Step 4: Simplify right side
    612,432.30x = 170,831,672,867.63
  5. Step 5: Solve for x
    x = 170,831,672,867.63/612,432.30
  6. Step 6: Final answer
    x = 278,939.69

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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.