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Finding the Fourth Proportional to 576,036.60, 864,054.90 and 243,612.60

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Solution

The fourth proportional to 576,036.60, 864,054.90 and 243,612.60 is: 365,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,036.60 : 864,054.90 = 243,612.60 : x
  2. Step 2: Convert to fraction form
    576,036.60/864,054.90 = 243,612.60/x
  3. Step 3: Cross multiply
    576,036.60x = 864,054.90 × 243,612.60
  4. Step 4: Simplify right side
    576,036.60x = 210,494,660,731.74
  5. Step 5: Solve for x
    x = 210,494,660,731.74/576,036.60
  6. Step 6: Final answer
    x = 365,418.90

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Similar ratio
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1.5x scale

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.