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Finding the Fourth Proportional to 488,314.40, 732,690.30 and 221,937.80

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Solution

The fourth proportional to 488,314.40, 732,690.30 and 221,937.80 is: 333,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,314.40 : 732,690.30 = 221,937.80 : x
  2. Step 2: Convert to fraction form
    488,314.40/732,690.30 = 221,937.80/x
  3. Step 3: Cross multiply
    488,314.40x = 732,690.30 × 221,937.80
  4. Step 4: Simplify right side
    488,314.40x = 162,611,673,263.34
  5. Step 5: Solve for x
    x = 162,611,673,263.34/488,314.40
  6. Step 6: Final answer
    x = 333,006.10

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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.