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Finding the Fourth Proportional to 824,357.88, 1,137,625.70 and 480,185

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Solution

The fourth proportional to 824,357.88, 1,137,625.70 and 480,185 is: 662,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,357.88 : 1,137,625.70 = 480,185 : x
  2. Step 2: Convert to fraction form
    824,357.88/1,137,625.70 = 480,185/x
  3. Step 3: Cross multiply
    824,357.88x = 1,137,625.70 × 480,185
  4. Step 4: Simplify right side
    824,357.88x = 546,270,796,754.50
  5. Step 5: Solve for x
    x = 546,270,796,754.50/824,357.88
  6. Step 6: Final answer
    x = 662,662.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.