Home / 1,405,916.18-1,940,170.28-761,336.91

Finding the Fourth Proportional to 1,405,916.18, 1,940,170.28 and 761,336.91

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Solution

The fourth proportional to 1,405,916.18, 1,940,170.28 and 761,336.91 is: 1,050,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,916.18 : 1,940,170.28 = 761,336.91 : x
  2. Step 2: Convert to fraction form
    1,405,916.18/1,940,170.28 = 761,336.91/x
  3. Step 3: Cross multiply
    1,405,916.18x = 1,940,170.28 × 761,336.91
  4. Step 4: Simplify right side
    1,405,916.18x = 1,477,123,245,849.04
  5. Step 5: Solve for x
    x = 1,477,123,245,849.04/1,405,916.18
  6. Step 6: Final answer
    x = 1,050,648.16

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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.