Home / 786,027.84-1,178,926.92-386,561.40

Finding the Fourth Proportional to 786,027.84, 1,178,926.92 and 386,561.40

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Solution

The fourth proportional to 786,027.84, 1,178,926.92 and 386,561.40 is: 579,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,027.84 : 1,178,926.92 = 386,561.40 : x
  2. Step 2: Convert to fraction form
    786,027.84/1,178,926.92 = 386,561.40/x
  3. Step 3: Cross multiply
    786,027.84x = 1,178,926.92 × 386,561.40
  4. Step 4: Simplify right side
    786,027.84x = 455,727,640,692.89
  5. Step 5: Solve for x
    x = 455,727,640,692.89/786,027.84
  6. Step 6: Final answer
    x = 579,785.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.