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Finding the Fourth Proportional to 291,392.83, 436,974.33 and 141,588.80

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Solution

The fourth proportional to 291,392.83, 436,974.33 and 141,588.80 is: 212,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,392.83 : 436,974.33 = 141,588.80 : x
  2. Step 2: Convert to fraction form
    291,392.83/436,974.33 = 141,588.80/x
  3. Step 3: Cross multiply
    291,392.83x = 436,974.33 × 141,588.80
  4. Step 4: Simplify right side
    291,392.83x = 61,870,671,015.50
  5. Step 5: Solve for x
    x = 61,870,671,015.50/291,392.83
  6. Step 6: Final answer
    x = 212,327.36

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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.