Home / 641,381.67-961,919.35-191,981.93

Finding the Fourth Proportional to 641,381.67, 961,919.35 and 191,981.93

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Solution

The fourth proportional to 641,381.67, 961,919.35 and 191,981.93 is: 287,927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,381.67 : 961,919.35 = 191,981.93 : x
  2. Step 2: Convert to fraction form
    641,381.67/961,919.35 = 191,981.93/x
  3. Step 3: Cross multiply
    641,381.67x = 961,919.35 × 191,981.93
  4. Step 4: Simplify right side
    641,381.67x = 184,671,128,027.79
  5. Step 5: Solve for x
    x = 184,671,128,027.79/641,381.67
  6. Step 6: Final answer
    x = 287,927.04

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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.