Home / 628,996.41-868,006.46-357,061.92

Finding the Fourth Proportional to 628,996.41, 868,006.46 and 357,061.92

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Solution

The fourth proportional to 628,996.41, 868,006.46 and 357,061.92 is: 492,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,996.41 : 868,006.46 = 357,061.92 : x
  2. Step 2: Convert to fraction form
    628,996.41/868,006.46 = 357,061.92/x
  3. Step 3: Cross multiply
    628,996.41x = 868,006.46 × 357,061.92
  4. Step 4: Simplify right side
    628,996.41x = 309,932,054,946.98
  5. Step 5: Solve for x
    x = 309,932,054,946.98/628,996.41
  6. Step 6: Final answer
    x = 492,740.58

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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.