Home / 921,401.28-1,271,576.96-539,551.04

Finding the Fourth Proportional to 921,401.28, 1,271,576.96 and 539,551.04

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Solution

The fourth proportional to 921,401.28, 1,271,576.96 and 539,551.04 is: 744,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,401.28 : 1,271,576.96 = 539,551.04 : x
  2. Step 2: Convert to fraction form
    921,401.28/1,271,576.96 = 539,551.04/x
  3. Step 3: Cross multiply
    921,401.28x = 1,271,576.96 × 539,551.04
  4. Step 4: Simplify right side
    921,401.28x = 686,080,671,208.04
  5. Step 5: Solve for x
    x = 686,080,671,208.04/921,401.28
  6. Step 6: Final answer
    x = 744,605.73

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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.