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Finding the Fourth Proportional to 576,286.30, 807,981.80 and 576,286.30

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Solution

The fourth proportional to 576,286.30, 807,981.80 and 576,286.30 is: 807,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,286.30 : 807,981.80 = 576,286.30 : x
  2. Step 2: Convert to fraction form
    576,286.30/807,981.80 = 576,286.30/x
  3. Step 3: Cross multiply
    576,286.30x = 807,981.80 × 576,286.30
  4. Step 4: Simplify right side
    576,286.30x = 465,628,841,989.34
  5. Step 5: Solve for x
    x = 465,628,841,989.34/576,286.30
  6. Step 6: Final answer
    x = 807,981.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.