Home / 411,905.13-616,742.62-291,467.04

Finding the Fourth Proportional to 411,905.13, 616,742.62 and 291,467.04

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Solution

The fourth proportional to 411,905.13, 616,742.62 and 291,467.04 is: 436,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,905.13 : 616,742.62 = 291,467.04 : x
  2. Step 2: Convert to fraction form
    411,905.13/616,742.62 = 291,467.04/x
  3. Step 3: Cross multiply
    411,905.13x = 616,742.62 × 291,467.04
  4. Step 4: Simplify right side
    411,905.13x = 179,760,148,023.86
  5. Step 5: Solve for x
    x = 179,760,148,023.86/411,905.13
  6. Step 6: Final answer
    x = 436,411.53

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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.