Home / 951,256.78-1,312,699.29-521,527.42

Finding the Fourth Proportional to 951,256.78, 1,312,699.29 and 521,527.42

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Solution

The fourth proportional to 951,256.78, 1,312,699.29 and 521,527.42 is: 719,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,256.78 : 1,312,699.29 = 521,527.42 : x
  2. Step 2: Convert to fraction form
    951,256.78/1,312,699.29 = 521,527.42/x
  3. Step 3: Cross multiply
    951,256.78x = 1,312,699.29 × 521,527.42
  4. Step 4: Simplify right side
    951,256.78x = 684,608,673,949.53
  5. Step 5: Solve for x
    x = 684,608,673,949.53/951,256.78
  6. Step 6: Final answer
    x = 719,688.61

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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.