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Finding the Fourth Proportional to 576,057.60, 862,574.40 and 406,663.20

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Solution

The fourth proportional to 576,057.60, 862,574.40 and 406,663.20 is: 608,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,057.60 : 862,574.40 = 406,663.20 : x
  2. Step 2: Convert to fraction form
    576,057.60/862,574.40 = 406,663.20/x
  3. Step 3: Cross multiply
    576,057.60x = 862,574.40 × 406,663.20
  4. Step 4: Simplify right side
    576,057.60x = 350,777,265,742.08
  5. Step 5: Solve for x
    x = 350,777,265,742.08/576,057.60
  6. Step 6: Final answer
    x = 608,927.42

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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.