Home / 519,521,429.61-779,184,713.57-260,667,147.33

Finding the Fourth Proportional to 519,521,429.61, 779,184,713.57 and 260,667,147.33

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Solution

The fourth proportional to 519,521,429.61, 779,184,713.57 and 260,667,147.33 is: 390,951,835.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,521,429.61 : 779,184,713.57 = 260,667,147.33 : x
  2. Step 2: Convert to fraction form
    519,521,429.61/779,184,713.57 = 260,667,147.33/x
  3. Step 3: Cross multiply
    519,521,429.61x = 779,184,713.57 × 260,667,147.33
  4. Step 4: Simplify right side
    519,521,429.61x = 203,107,856,528,131,744
  5. Step 5: Solve for x
    x = 203,107,856,528,131,744/519,521,429.61
  6. Step 6: Final answer
    x = 390,951,835.58

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Double scale
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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.