Home / 805,271.28-1,111,302.96-461,168.64

Finding the Fourth Proportional to 805,271.28, 1,111,302.96 and 461,168.64

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Solution

The fourth proportional to 805,271.28, 1,111,302.96 and 461,168.64 is: 636,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,271.28 : 1,111,302.96 = 461,168.64 : x
  2. Step 2: Convert to fraction form
    805,271.28/1,111,302.96 = 461,168.64/x
  3. Step 3: Cross multiply
    805,271.28x = 1,111,302.96 × 461,168.64
  4. Step 4: Simplify right side
    805,271.28x = 512,498,074,691.17
  5. Step 5: Solve for x
    x = 512,498,074,691.17/805,271.28
  6. Step 6: Final answer
    x = 636,429.10

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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.