Home / 913,703.40-1,370,555.10-415,067.40

Finding the Fourth Proportional to 913,703.40, 1,370,555.10 and 415,067.40

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Solution

The fourth proportional to 913,703.40, 1,370,555.10 and 415,067.40 is: 622,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,703.40 : 1,370,555.10 = 415,067.40 : x
  2. Step 2: Convert to fraction form
    913,703.40/1,370,555.10 = 415,067.40/x
  3. Step 3: Cross multiply
    913,703.40x = 1,370,555.10 × 415,067.40
  4. Step 4: Simplify right side
    913,703.40x = 568,872,741,913.74
  5. Step 5: Solve for x
    x = 568,872,741,913.74/913,703.40
  6. Step 6: Final answer
    x = 622,601.10

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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.