Home / 1,238,726.80-1,858,090.20-397,363.60

Finding the Fourth Proportional to 1,238,726.80, 1,858,090.20 and 397,363.60

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Solution

The fourth proportional to 1,238,726.80, 1,858,090.20 and 397,363.60 is: 596,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,726.80 : 1,858,090.20 = 397,363.60 : x
  2. Step 2: Convert to fraction form
    1,238,726.80/1,858,090.20 = 397,363.60/x
  3. Step 3: Cross multiply
    1,238,726.80x = 1,858,090.20 × 397,363.60
  4. Step 4: Simplify right side
    1,238,726.80x = 738,337,410,996.72
  5. Step 5: Solve for x
    x = 738,337,410,996.72/1,238,726.80
  6. Step 6: Final answer
    x = 596,045.40

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Double scale
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Similar ratio
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1.5x scale

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.