Home / 951,257.78-1,312,700.67-521,528.42

Finding the Fourth Proportional to 951,257.78, 1,312,700.67 and 521,528.42

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Solution

The fourth proportional to 951,257.78, 1,312,700.67 and 521,528.42 is: 719,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,257.78 : 1,312,700.67 = 521,528.42 : x
  2. Step 2: Convert to fraction form
    951,257.78/1,312,700.67 = 521,528.42/x
  3. Step 3: Cross multiply
    951,257.78x = 1,312,700.67 × 521,528.42
  4. Step 4: Simplify right side
    951,257.78x = 684,610,706,358.04
  5. Step 5: Solve for x
    x = 684,610,706,358.04/951,257.78
  6. Step 6: Final answer
    x = 719,689.99

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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.