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Finding the Fourth Proportional to 770,812.79, 1,156,212.79 and 602,474.62

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Solution

The fourth proportional to 770,812.79, 1,156,212.79 and 602,474.62 is: 903,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,812.79 : 1,156,212.79 = 602,474.62 : x
  2. Step 2: Convert to fraction form
    770,812.79/1,156,212.79 = 602,474.62/x
  3. Step 3: Cross multiply
    770,812.79x = 1,156,212.79 × 602,474.62
  4. Step 4: Simplify right side
    770,812.79x = 696,588,860,760.03
  5. Step 5: Solve for x
    x = 696,588,860,760.03/770,812.79
  6. Step 6: Final answer
    x = 903,706.93

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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.