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Finding the Fourth Proportional to 524,120.80, 785,014.80 and 512,456.80

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Solution

The fourth proportional to 524,120.80, 785,014.80 and 512,456.80 is: 767,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,120.80 : 785,014.80 = 512,456.80 : x
  2. Step 2: Convert to fraction form
    524,120.80/785,014.80 = 512,456.80/x
  3. Step 3: Cross multiply
    524,120.80x = 785,014.80 × 512,456.80
  4. Step 4: Simplify right side
    524,120.80x = 402,286,172,360.64
  5. Step 5: Solve for x
    x = 402,286,172,360.64/524,120.80
  6. Step 6: Final answer
    x = 767,544.76

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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.