Home / 1,256,886.38-1,885,624.83-415,438.16

Finding the Fourth Proportional to 1,256,886.38, 1,885,624.83 and 415,438.16

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Solution

The fourth proportional to 1,256,886.38, 1,885,624.83 and 415,438.16 is: 623,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,886.38 : 1,885,624.83 = 415,438.16 : x
  2. Step 2: Convert to fraction form
    1,256,886.38/1,885,624.83 = 415,438.16/x
  3. Step 3: Cross multiply
    1,256,886.38x = 1,885,624.83 × 415,438.16
  4. Step 4: Simplify right side
    1,256,886.38x = 783,360,509,825.51
  5. Step 5: Solve for x
    x = 783,360,509,825.51/1,256,886.38
  6. Step 6: Final answer
    x = 623,254.83

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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.