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Finding the Fourth Proportional to 507,634.96, 700,525.80 and 281,278.48

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Solution

The fourth proportional to 507,634.96, 700,525.80 and 281,278.48 is: 388,158.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,634.96 : 700,525.80 = 281,278.48 : x
  2. Step 2: Convert to fraction form
    507,634.96/700,525.80 = 281,278.48/x
  3. Step 3: Cross multiply
    507,634.96x = 700,525.80 × 281,278.48
  4. Step 4: Simplify right side
    507,634.96x = 197,042,832,224.78
  5. Step 5: Solve for x
    x = 197,042,832,224.78/507,634.96
  6. Step 6: Final answer
    x = 388,158.51

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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.