Home / 641,667,630.38-883,443,309.90-500,357,520.38

Finding the Fourth Proportional to 641,667,630.38, 883,443,309.90 and 500,357,520.38

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Solution

The fourth proportional to 641,667,630.38, 883,443,309.90 and 500,357,520.38 is: 688,888,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,667,630.38 : 883,443,309.90 = 500,357,520.38 : x
  2. Step 2: Convert to fraction form
    641,667,630.38/883,443,309.90 = 500,357,520.38/x
  3. Step 3: Cross multiply
    641,667,630.38x = 883,443,309.90 × 500,357,520.38
  4. Step 4: Simplify right side
    641,667,630.38x = 442,037,503,936,048,256
  5. Step 5: Solve for x
    x = 442,037,503,936,048,256/641,667,630.38
  6. Step 6: Final answer
    x = 688,888,581.89

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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.