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Finding the Fourth Proportional to 483,019.62, 666,554.10 and 289,536.63

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Solution

The fourth proportional to 483,019.62, 666,554.10 and 289,536.63 is: 399,552.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,019.62 : 666,554.10 = 289,536.63 : x
  2. Step 2: Convert to fraction form
    483,019.62/666,554.10 = 289,536.63/x
  3. Step 3: Cross multiply
    483,019.62x = 666,554.10 × 289,536.63
  4. Step 4: Simplify right side
    483,019.62x = 192,991,827,826.68
  5. Step 5: Solve for x
    x = 192,991,827,826.68/483,019.62
  6. Step 6: Final answer
    x = 399,552.77

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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.