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Finding the Fourth Proportional to 436,053.40, 654,080.10 and 187,221.40

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Solution

The fourth proportional to 436,053.40, 654,080.10 and 187,221.40 is: 280,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,053.40 : 654,080.10 = 187,221.40 : x
  2. Step 2: Convert to fraction form
    436,053.40/654,080.10 = 187,221.40/x
  3. Step 3: Cross multiply
    436,053.40x = 654,080.10 × 187,221.40
  4. Step 4: Simplify right side
    436,053.40x = 122,457,792,034.14
  5. Step 5: Solve for x
    x = 122,457,792,034.14/436,053.40
  6. Step 6: Final answer
    x = 280,832.10

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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.