Home / 1,405,915.18-1,940,168.90-761,335.91

Finding the Fourth Proportional to 1,405,915.18, 1,940,168.90 and 761,335.91

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Solution

The fourth proportional to 1,405,915.18, 1,940,168.90 and 761,335.91 is: 1,050,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,915.18 : 1,940,168.90 = 761,335.91 : x
  2. Step 2: Convert to fraction form
    1,405,915.18/1,940,168.90 = 761,335.91/x
  3. Step 3: Cross multiply
    1,405,915.18x = 1,940,168.90 × 761,335.91
  4. Step 4: Simplify right side
    1,405,915.18x = 1,477,120,254,513.33
  5. Step 5: Solve for x
    x = 1,477,120,254,513.33/1,405,915.18
  6. Step 6: Final answer
    x = 1,050,646.78

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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.