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Finding the Fourth Proportional to 576,530.48, 795,578.64 and 321,897.80

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Solution

The fourth proportional to 576,530.48, 795,578.64 and 321,897.80 is: 444,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,530.48 : 795,578.64 = 321,897.80 : x
  2. Step 2: Convert to fraction form
    576,530.48/795,578.64 = 321,897.80/x
  3. Step 3: Cross multiply
    576,530.48x = 795,578.64 × 321,897.80
  4. Step 4: Simplify right side
    576,530.48x = 256,095,013,942.99
  5. Step 5: Solve for x
    x = 256,095,013,942.99/576,530.48
  6. Step 6: Final answer
    x = 444,200.30

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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.