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Finding the Fourth Proportional to 524,419.47, 726,439.77 and 513,790.65

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Solution

The fourth proportional to 524,419.47, 726,439.77 and 513,790.65 is: 711,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,419.47 : 726,439.77 = 513,790.65 : x
  2. Step 2: Convert to fraction form
    524,419.47/726,439.77 = 513,790.65/x
  3. Step 3: Cross multiply
    524,419.47x = 726,439.77 × 513,790.65
  4. Step 4: Simplify right side
    524,419.47x = 373,237,961,614.15
  5. Step 5: Solve for x
    x = 373,237,961,614.15/524,419.47
  6. Step 6: Final answer
    x = 711,716.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.