Home / 921,339.04-1,271,449.09-513,431.93

Finding the Fourth Proportional to 921,339.04, 1,271,449.09 and 513,431.93

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Solution

The fourth proportional to 921,339.04, 1,271,449.09 and 513,431.93 is: 708,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,339.04 : 1,271,449.09 = 513,431.93 : x
  2. Step 2: Convert to fraction form
    921,339.04/1,271,449.09 = 513,431.93/x
  3. Step 3: Cross multiply
    921,339.04x = 1,271,449.09 × 513,431.93
  4. Step 4: Simplify right side
    921,339.04x = 652,802,560,175.44
  5. Step 5: Solve for x
    x = 652,802,560,175.44/921,339.04
  6. Step 6: Final answer
    x = 708,536.74

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Double scale
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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.