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Finding the Fourth Proportional to 576,043.60, 864,065.40 and 365,054.80

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Solution

The fourth proportional to 576,043.60, 864,065.40 and 365,054.80 is: 547,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,043.60 : 864,065.40 = 365,054.80 : x
  2. Step 2: Convert to fraction form
    576,043.60/864,065.40 = 365,054.80/x
  3. Step 3: Cross multiply
    576,043.60x = 864,065.40 × 365,054.80
  4. Step 4: Simplify right side
    576,043.60x = 315,431,221,783.92
  5. Step 5: Solve for x
    x = 315,431,221,783.92/576,043.60
  6. Step 6: Final answer
    x = 547,582.20

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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.