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Finding the Fourth Proportional to 604,928, 907,474.99 and 205,461.50

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Solution

The fourth proportional to 604,928, 907,474.99 and 205,461.50 is: 308,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,928 : 907,474.99 = 205,461.50 : x
  2. Step 2: Convert to fraction form
    604,928/907,474.99 = 205,461.50/x
  3. Step 3: Cross multiply
    604,928x = 907,474.99 × 205,461.50
  4. Step 4: Simplify right side
    604,928x = 186,451,172,657.89
  5. Step 5: Solve for x
    x = 186,451,172,657.89/604,928
  6. Step 6: Final answer
    x = 308,220.44

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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.