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Finding the Fourth Proportional to 503,661.60, 755,492.40 and 282,016.80

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Solution

The fourth proportional to 503,661.60, 755,492.40 and 282,016.80 is: 423,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,661.60 : 755,492.40 = 282,016.80 : x
  2. Step 2: Convert to fraction form
    503,661.60/755,492.40 = 282,016.80/x
  3. Step 3: Cross multiply
    503,661.60x = 755,492.40 × 282,016.80
  4. Step 4: Simplify right side
    503,661.60x = 213,061,549,072.32
  5. Step 5: Solve for x
    x = 213,061,549,072.32/503,661.60
  6. Step 6: Final answer
    x = 423,025.20

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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.