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Finding the Fourth Proportional to 576,063.40, 807,318.20 and 576,063.40

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Solution

The fourth proportional to 576,063.40, 807,318.20 and 576,063.40 is: 807,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,063.40 : 807,318.20 = 576,063.40 : x
  2. Step 2: Convert to fraction form
    576,063.40/807,318.20 = 576,063.40/x
  3. Step 3: Cross multiply
    576,063.40x = 807,318.20 × 576,063.40
  4. Step 4: Simplify right side
    576,063.40x = 465,066,467,173.88
  5. Step 5: Solve for x
    x = 465,066,467,173.88/576,063.40
  6. Step 6: Final answer
    x = 807,318.20

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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.