Home / 921,605.22-1,271,820.96-513,732.96

Finding the Fourth Proportional to 921,605.22, 1,271,820.96 and 513,732.96

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Solution

The fourth proportional to 921,605.22, 1,271,820.96 and 513,732.96 is: 708,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,605.22 : 1,271,820.96 = 513,732.96 : x
  2. Step 2: Convert to fraction form
    921,605.22/1,271,820.96 = 513,732.96/x
  3. Step 3: Cross multiply
    921,605.22x = 1,271,820.96 × 513,732.96
  4. Step 4: Simplify right side
    921,605.22x = 653,376,346,370.84
  5. Step 5: Solve for x
    x = 653,376,346,370.84/921,605.22
  6. Step 6: Final answer
    x = 708,954.69

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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.