Home / 1,238,774.80-1,858,162.20-397,411.60

Finding the Fourth Proportional to 1,238,774.80, 1,858,162.20 and 397,411.60

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Solution

The fourth proportional to 1,238,774.80, 1,858,162.20 and 397,411.60 is: 596,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,774.80 : 1,858,162.20 = 397,411.60 : x
  2. Step 2: Convert to fraction form
    1,238,774.80/1,858,162.20 = 397,411.60/x
  3. Step 3: Cross multiply
    1,238,774.80x = 1,858,162.20 × 397,411.60
  4. Step 4: Simplify right side
    1,238,774.80x = 738,455,212,961.52
  5. Step 5: Solve for x
    x = 738,455,212,961.52/1,238,774.80
  6. Step 6: Final answer
    x = 596,117.40

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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.