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Finding the Fourth Proportional to 573,078.20, 859,617.30 and 307,357.70

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Solution

The fourth proportional to 573,078.20, 859,617.30 and 307,357.70 is: 461,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,078.20 : 859,617.30 = 307,357.70 : x
  2. Step 2: Convert to fraction form
    573,078.20/859,617.30 = 307,357.70/x
  3. Step 3: Cross multiply
    573,078.20x = 859,617.30 × 307,357.70
  4. Step 4: Simplify right side
    573,078.20x = 264,209,996,208.21
  5. Step 5: Solve for x
    x = 264,209,996,208.21/573,078.20
  6. Step 6: Final answer
    x = 461,036.55

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Similar ratio
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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.