Home / 1,586,416.41-2,378,730.38-521,172.45

Finding the Fourth Proportional to 1,586,416.41, 2,378,730.38 and 521,172.45

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Solution

The fourth proportional to 1,586,416.41, 2,378,730.38 and 521,172.45 is: 781,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,416.41 : 2,378,730.38 = 521,172.45 : x
  2. Step 2: Convert to fraction form
    1,586,416.41/2,378,730.38 = 521,172.45/x
  3. Step 3: Cross multiply
    1,586,416.41x = 2,378,730.38 × 521,172.45
  4. Step 4: Simplify right side
    1,586,416.41x = 1,239,728,737,428.17
  5. Step 5: Solve for x
    x = 1,239,728,737,428.17/1,586,416.41
  6. Step 6: Final answer
    x = 781,464.90

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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.