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Finding the Fourth Proportional to 585,423.60, 878,135.40 and 576,092.40

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Solution

The fourth proportional to 585,423.60, 878,135.40 and 576,092.40 is: 864,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,423.60 : 878,135.40 = 576,092.40 : x
  2. Step 2: Convert to fraction form
    585,423.60/878,135.40 = 576,092.40/x
  3. Step 3: Cross multiply
    585,423.60x = 878,135.40 × 576,092.40
  4. Step 4: Simplify right side
    585,423.60x = 505,887,130,110.96
  5. Step 5: Solve for x
    x = 505,887,130,110.96/585,423.60
  6. Step 6: Final answer
    x = 864,138.60

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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.