Home / 951,216.82-1,312,678.86-521,487.76

Finding the Fourth Proportional to 951,216.82, 1,312,678.86 and 521,487.76

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Solution

The fourth proportional to 951,216.82, 1,312,678.86 and 521,487.76 is: 719,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,216.82 : 1,312,678.86 = 521,487.76 : x
  2. Step 2: Convert to fraction form
    951,216.82/1,312,678.86 = 521,487.76/x
  3. Step 3: Cross multiply
    951,216.82x = 1,312,678.86 × 521,487.76
  4. Step 4: Simplify right side
    951,216.82x = 684,545,958,300.75
  5. Step 5: Solve for x
    x = 684,545,958,300.75/951,216.82
  6. Step 6: Final answer
    x = 719,652.92

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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.