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Finding the Fourth Proportional to 576,064.40, 807,319.60 and 576,064.40

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Solution

The fourth proportional to 576,064.40, 807,319.60 and 576,064.40 is: 807,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,064.40 : 807,319.60 = 576,064.40 : x
  2. Step 2: Convert to fraction form
    576,064.40/807,319.60 = 576,064.40/x
  3. Step 3: Cross multiply
    576,064.40x = 807,319.60 × 576,064.40
  4. Step 4: Simplify right side
    576,064.40x = 465,068,080,982.24
  5. Step 5: Solve for x
    x = 465,068,080,982.24/576,064.40
  6. Step 6: Final answer
    x = 807,319.60

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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.