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Finding the Fourth Proportional to 556,817.05, 768,407.51 and 302,168.24

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Solution

The fourth proportional to 556,817.05, 768,407.51 and 302,168.24 is: 416,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,817.05 : 768,407.51 = 302,168.24 : x
  2. Step 2: Convert to fraction form
    556,817.05/768,407.51 = 302,168.24/x
  3. Step 3: Cross multiply
    556,817.05x = 768,407.51 × 302,168.24
  4. Step 4: Simplify right side
    556,817.05x = 232,188,344,694.39
  5. Step 5: Solve for x
    x = 232,188,344,694.39/556,817.05
  6. Step 6: Final answer
    x = 416,992.16

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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.