Home / 951,281.21-1,312,780.88-521,560.33

Finding the Fourth Proportional to 951,281.21, 1,312,780.88 and 521,560.33

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Solution

The fourth proportional to 951,281.21, 1,312,780.88 and 521,560.33 is: 719,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,281.21 : 1,312,780.88 = 521,560.33 : x
  2. Step 2: Convert to fraction form
    951,281.21/1,312,780.88 = 521,560.33/x
  3. Step 3: Cross multiply
    951,281.21x = 1,312,780.88 × 521,560.33
  4. Step 4: Simplify right side
    951,281.21x = 684,694,428,990.49
  5. Step 5: Solve for x
    x = 684,694,428,990.49/951,281.21
  6. Step 6: Final answer
    x = 719,760.28

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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.